Call me

Have a Query? We will call you right away.

+91

E.g: 9876543210, 01112345678

We will give you a call shortly, Thank You

Office hours: 9:00 am to 9:00 pm IST (7 days a week)

What are you looking for?

Syllabus

Derive equations of motion?

State and prove triangle law of vector addition.

what is difference between absolute velocity and relative velocity

What is galileo law of odd numbers????

the position of a body moving along x-axis at time t is given by

x = (tm . The distance travelled by body in time interval t = 0 to t = 3 s is -^{2}-4t+6)(1) 5 m

(2) 7m

(3) 4 m

(4) 3 m

A ball is thrown vertically upwards with a velocity of 20m/s from the top of a multistorey building. The height of the point from where the ball is thrown is 25m from the ground.

(1) How high the ball will rise?

(2) How long it will be before the ball hits the ground? (Take g=10m/s

^{2}A particle initially at rest starts moving from the reference point x=0 along x- axis, with a velocity

that varies asV=Vroot x , whereais constant. (aa) How do the velocity and the acceleration of the particle vary with time ?(

b) What is the average velocity of the particle over the firstmetres of its path?sa block of mass of 2 kg is placed on the floor. the coefficient of static friction is 0.4 . a force F of 2.5 N is applied on the block. calculate the force of friction between the block and the floor.

means & full form of w.r.t.

a) Find the horizontal and vertical displacement after 1,2,3,4,5 seconds, then the path of the motion of ball.

b) If the ball reaches the ground in 4 seconds, find the height of the tower.

a ball is thrown vertically upward with a speed of 19.6 m/s from the top of a tower and returns to earth in 6 sec find the height of the tower

an object thrown vertically upwards from the top of a building reaches the foot of the building in a time t1.it takes a time t2,if thrown vertically downwards with the same velocity.if the time of free fall is t show that t=under root ti*t2.

A particle is moving east-wards with a velocity of 5m/s. in 10 seconds the velocity changes to 5 m/s northwards.What is the average acceleration in this time ?

Options are:

A. 6 m/s. B. 4 m/s C. 9 m/s D. 16 m/s

find unit vector perpendicular to

A=2 i +j + k andB= i-j+2k.a bicyclist encounters a series of hills.uphill speed is always v1 and downhill speed is always v2.the total distance travelled is l,with uphill and downhill portions of equal length,the cyclist's average speed is

1.v

_{1}/v_{2}2.v

_{2}/v_{1}3.v

_{1}v_{2}/v_{1}+v_{2}4.2v

_{1}v_{2}/v_{1}+v_{2}if a particle starts moving with acceleration 2m/s2 . what is th distance travelled by it in 5th half second ?

A boy can throw a ball 50m vertically upwards. Find the greatest horizontal distance he can throw.

A stone falls freely from rest & the total distance covered by it in last second of its motion equals the distance covered by it in the first 3second of its motion.How long the stone will remain in the air?please show me easy processes.

If the acceleration of a particle is constant in magnitude but not in direction what type of path does the particle follow?

a train starts from a station with acceleration 0.2 m/s

^{2}on a straight track and then comes to rest after attaining maximum speed on another station due to retardation 0.4m/s^{2}. if total time spent is half an hour, then distance between two stations is {neglect length of train}1. 216 km

2. 512 km

3. 728 km

4. 1296 km

A balloon starts rising from the ground with acceleration of 1.25m/s sq . After 8s a stone is released from the balloon . How much time will it take to reach the ground ?(g = 10 m/s sq. )

a) a

^{2}= x + 3b) a=2x

^{2}+ 4c) 2a =3x + 5

d) a=4x - 5

the resultant of 2 vectors u and v is perpendicular to u and its magnitude is equal to half of v find the angle between u and v?

A) The initial (t=0) velocity of a particle is 3m/s

B) The acceleration of a particle is 5m/s

C) The particle is at the origin at t=2s

D) All of these

A ballon is ascending at the rate of 14m/s at a height of 98m above the ground when a packet is dropped from the ballon.After how much tym and with wat velocity does it reach the ground?

two parallel rail tracks run north -south. train A moves north with speed 54km/h and train B moves south with speed 90km/h. what is the velocity of a monkey running on roof of a train A against its motion (with velocity of 18km/h with respect to A)as observed by a man standing on ground(in m/s).

Water drops fall at regular intervals from tap 5m above the ground.The third drop is leaving the tap at the instant the first drop touches the ground.How far above the ground is the second drop at that instant?

A ) 1.25m

B ) 2.5m

C ) 4.25m

D ) 2.25m

E ) 3.75m

1.rest

2.uniform velocity

3.uniform acceleration

4.uniform retardation

A car accelerates from rest at a constant rate α (alpha) for some time. After which it decelerate at a constant rate β (beta) to come to rest . If total time elapsed is t second then calculate total distance travelled by the car in term of α.βDraw the position- time graph for

On a two lane road, car A is travelling with a speed of 36km/h . two cars B and C approach car A in opposite directions with a speed of 54km/h each. At certain instant ,when the distance AB is equal to AC , both being 1 km , B decides to overtake A before C does. what minimum acceleration of car B is required to avoid an accident ?

A particle is moving along a circle such that it completes one revolution in 40 sec.

in 2 min 20 sec, the ratio |displacement| /distance is...???a) Zero

b) 1 time

c) 2 times

d) 3 times

two trains A and B of length 400m each are moving on two parallel tracks with a uniform speed of 72 km/h in the same direction,with A ahead of B.The driver of B decides to overtake A andaccelerates by 1m/s^2.If after 50s ,the guard of B just brushes past the driver of A,what was the original distance between them?

^{2}and 8m/s^{2}respectively in the direction from M to N .Both the particles will meet each other twice at distance ______mand again after ______m. (MN=36m).a. 148,228 b. 132,192 c. 252,144 d. 63,18

I want the answer with full solution as soon as possible exams tomorrow.

If unit vectors A and B are inclined at an angle theta, then prove that IA-BI=2 sin theta/ 2

A body is dropped from the top of a tower through 40 m during the last two seconds of its fall.Waht is the height of the tower.

g=10 ms^{-1}Calculate the force acting on a body whose linear momentum changes by 20 kg m/s in 10 sec.

Q. The position of an object moving along x-axis is given by x= a + btwhere a=8.5m, b=2.5m/s

^{2}^{2}and t is measured in seconds. What is its velocity at t=0s and t=2.0s. What is the average velocity b/w t=2.0s and t= 4.0s ?pls reply soon1. v = u + αt3/2

2. v = u + 3/2αt3

3. v = u +2/5αt5/2

4. v = u + αt5/2

_{0}=+ve,v=+veb)x_{0}=+ve,v=-vec)x_{0}=-ve,v=+ved)x_{0}=-ve,v=-veThe letters x_{0}and v represent postion of the object at t=0 and uniform velocity of the object respectively.3.Two ends of a train moving with a constant acceleration passes a certain point with elocities u and v. Show that the elocity with which the middle point f the train passes the same point is square root of(u^{2}+v^{2})/2.A car is being driven at a uniform velocity 'u' on a horizontal road. The driver suddenly puts his foot on the accelerator and the speed increases to 'v'. Unfortunately after that his break failed. Show his velocity-time graph.

a food packet is released from a helicopter which is rising steadily at 2 m/s

after 2 sec ( i ) what is the velocity of the packet ( ii) how far is it below the helicopter?

^{2}=2+t. Its acceleration will be ??????a particle moving along x- axis has acceleration f at time t given by f = fo[1+t / T] where fo and t are constant. the particle at t = 0 has zero velocity .in time interval b/w t = 0 and instant when f=0 the particle velocity vx is

A car accelerates from rest at a constant rate A for some time after which it retards at constant rate B to come to rest. If the total time lapse is T seconds, evaluate the maximun velocity reached and total distance travelled, in terms of A, B and T

a)Maximum height reached.

b)Time taken to reach the highest point.

c)Velocity at a height of 196m from the point of projection.

d)Velocity with which it returns to ground.

e)Time taken to reach the ground

The Driver Of A Train Moving At A Speed at V1, sights another train at a distance d, ahead of him moving in the same direction with a slower speed V2. He Applies The Brakes And Gives A Constant retardation a to his train. Show That there will be no collision If d>(V1-V2)*2/2a.

answer=x=e^t

A jet airplane travelling at the speed of 500 km h^{–1}ejects its products of combustion at the speed of 1500 km h^{–1}relative to the jet plane. What is the speed of the latter with respect to an observer on ground?(1) An aeroplane flying in the sky

(2) Motion of gas molecules

(3) A train moving along a long straight track

(4) Earth revolving around the sun

Experts please don't give links and give detailed explanation for each question

Two vectors

AandBare given byA= 5i+3j-4k,B= 5i+2j+4k. Find the unit vectors along (A+B) and (A-B).How can we derive the distance travelled in nth second by calculus method? Please derive it...

the parallax of a heavenly body measured from two points diametrically opposite on the earths equator is 60 second .if the radius of the eatrh is 6.4 *10^6 m , determine distance of the heavenly body from the center of the earth . convert this distance in A.U

given 1 AU =1.5 * 10^11 m

A car is moving on a straight road covers one third of the distance with a speed of 20 kn/hr and the rest with a speed of 60 km/hr. the average speed of the car is?

can u tell hw to use natural tangents in logarithmic tables book

A stone dropped from top of tower is found to travel (5/9) of the height of tower during the last second of its fall. The time of fall is??

a motor car is going due north at a speed of 50 km/h.it makes a 90

^{o}left turn without changin its speed the change in velocity of the car is ?a body moving with uniform retardation covers 3km before the speed is reduced to half of its initial value. It comes to rest in another distance of how many metres?

Help experts

the maximum speed of a bus is 72 km/hr , it accelerated uniformly at a rate 1m/s^2 and retardes at a rate of 4m/s^2, find the least time in which it can do a journey of 1km and also draw the v-t curve.

A bullet loses 1/20 of its velocity in passing through a plank.What is the least number of planks required to stop the bullet?

_{max=}4 R_{max}a car starting from rest accelerates at the rate f through a dist. s, then continues at constant speed for some time and then decelerates at the rate of f/2to come to rest. if the total dist. is 5s., then prove that s=ft

^{2}/2A Parachutist bails out from an aeroplaneand after dropping through a distance of 40m opens the parachute and decelerates at 2m/s2 if he reach the ground with a speed of 2m/s how long he is in air? at what height did he bail out from the plane

A ball projected from ground vertically upward is at same height at time t1 and t2 . the speed of projection of ball is

The position vector of a particle is

r= (t^{2}-1)i+ 2tj. Determine the trajectory of the particle in the 'xy ' plane.An Athelete completes one round of a circular track of radius 'R' in 40 seconds. What will be his displacement at the end of 2 minutes 20 seconds ?

Draw the acceleration time graph for

A car is moving with the Speed of 50 Km/h can be stopped by brakes after at least 6m.What will be the minimum stopping distance, if the same car is moving at the speed of 100 Km/Hr.

The distance x of a particle moving in 1 dimension under the action of a constant force is related to time t by equation t = root over x + 3 where x is in metres and t is in seconds . Find the displacement when it's velocity is zero.

A smooth steel ball strikes a fixed smooth steel plate at an angle theta with vertical.If coefficient of restitution is e find rebounce angle?

Two trains A and B each of length 100m running on parallel tracks.One overtakes other in 20seconds.One cross other in 10 seconds.Calculate velocity of each train.?

a bus is moving with a speed of 10m/s on a straight road. a scooterist wishes to overtake the bus in 100 sec. if the bus is at a distance of 1 k from the scooterist , with what speed the scooterist chase the bus?

^{2}A stone is dropped from top of the tower of height

After 1 second another stone is dropped from the balcony 20m below the top." h".Both reach the bottom simultaneously. what is the value of h? taking g=10m/sec

^{2}if position of a particle at instant t is given by x= t3.find the acceleration of the particle..

derieve the relation for uniformly accelerated motion along the straight line. s= ut + 1/2 at2where the symbols have their usual meaing....

The resultant of two forces acting at an angle 150 is 10 kg wt and is perpendicular to one of the forces.The magnitude of smaller force is how much?