Select Board & Class
DIFFERENTIATE BETWEEN SCALAR AND VECTOR QUANTITIES .
what is the formula for retardation
5 examples of uniform and Non-uniform motion.??
list 10 scalar and 10 vector quantities related to motion.
if momentum of a body increases by 20 percent, then percentage increase in its kinetic energy is...
What is the full form of CGS and SI?
A brick falls off the top of a wall under construction and drops into a bed of sand 14.5 m below. It makes a dent in the sand 185 mm deep. What is the speed of the brick just before it hit the sand its deceleration in the sand and time it takes to fall?
give 5 examples of uniform circular motion ?
can the equation v = u+at be used for a particle moving with nonuniform acceleration ?
Please explain the derivation of the equations of motion by graphical method.
derive the third equation of motion : v2 - u2 =2as
Can the displacement be greater than the distance travelled by an object ?
give 5 examples of uniform acceleration.
Ram hired a 3 wheeler from bus stand to his house. The driver A of 3 wheeler followed the shortest path and reached the destination in 1/2 an hour and charged Rs 50 from Ram. On the same day Ram's sister also came her house after attending a function in other city. She also came hired a 3 wheeler the diver B of 3 wheeler took an hour to reach and charged Rs 150 from her.
a) Is the displacement , between Bus stand and Ram house is same in both case?
b) What value are shown by A ?
Can a body have zero velocity and still acceleration? give examples,Please answer by 7:30 pm today
What is To and Fro Motion? Explain with examples.
how to draw the distance - time graph for activity 8.9 and activity 8.10 in page number 106 and 107
Derive the following equations of motion graphically-
1) v = u + at
2) s = ut + 1/2at2
derivation - equation of motion by graphical method
Can u give me 9th cbse fa1 sample paper
what are the difference between uniform linear and uniform circular motion? explain with example.
differentiate between distance and displacement
when a graph of one quantity versus another results in a straight line the quantities are:
a.] both constant
c.] directly proportional
Uniform circular motion is an accelerated motion . JUSTIFY THIS STATEMENT
The odometer of a car reads 2000km at the start of a trip and 2400 km at the end of the trip. If the trip took8h, calculate the average speed of the car in km h-1 and ms-1
What is the basic difference between Motion and Rest ?
A body is moving along a circular path of radius(R). What will be the distance and displacement of the body when it completes half revolution?
ABDUL WHILE DRIVING TO SCHOOL COMPUTES THE AVERAGE SPEED FOR HIS TRIP TO BE 20 KM/HOUR. ON HIS RETURN TRIP ALONG THE SAME ROUTE , THERE IS LESS TRAFFIC AND THE AVERAGE SPEED IS 30 KM/HOUR. WHAT IS THE AVERAGE SPEED FOR ABDUL'S TRIP?
state four differences between distance and displacement
Difference between uniform and non - uniform motion.
An object moving with a speed of 5 m/s comes to rest in 10 s, after the brakes are applied. What is the initial velocity?
give an example to show that displacement can be negative?
S=ut+1/2at2 prove by graphical method.
While playing football match, Kris collided and got entangled with Tom who was playing for opposite team and running from opposite side. The mass of Kris was 40 kg and the mass of Tom was 60 kg. If Tom was running with a velocity of 3m/s and Kris was running with a velocity of 4 m/s, find the velocity and direction of both of the players after collision assuming other forces were negligible.
explain different types of motion with dailylife examples.
example for acceleration against the direction of motion
3 difference between fundamental and derived physical quantities
1) Two bodies each of mass 0.5 kg are moving in a straight line but opposite in direction with the same velocity of 2m/s. They collide with each other and stick to each other after collision. What is the common velocity of these bodies after collision ?
2) An object of mass 1.5 kg travelling in a straight line with a velocity of 5 m/s collides with a wooden block of mass 5kg resting on the floor. This object sticks with the wooden block after collision and both move together in a straight line. Calculate a) the total momentum before collision b) the total momentum after collision and c) the velocity of th e combination of these objects after collision.
Please answer fast and explain me.
rest and motion are relative terms. Explain.
1.The numerical ratio of displacement to distance for a moving object is:
a)always less than 1
b)always equal to 1
c)always grater than 1
d)equal to or less than 1
A body moving with uniform acceleration describes 20 m in 2nd second and 30 m in 4th second of its motion. Calculate the distance moved by it in 6th second.
give some examples of accelerated motion in everyday life
Explain whether force is balanced or unbalanced force
1) a suitcase is dropped from certain height.
2) Biscle is moving in straight line with constant velocity.
3) In game of tug of war , the two teams apply force but the rope does not move
4) a ball rolling on ground stops after sometime.
Under what condition is the magnitude of average velocity of an object equal to it's average speed?
can a particle be acclerated:-
a) if its speed is constant.
b) if its velocity is constant.
A body travels 200cm in the 1st 2 s and 220cm in the next 5 s.Calculate the velocity at the end of 7th second from start ? It's answer is 2.22 m/s
A ball is dropped on the floor from the height of 10m. It rebounds to a height of 2.5m. If the ball is in contact with the floor for 0.01 seconds, what is the average acceleration during contact ?
Derive the equation :
EXPLAIN WHETHER THE WALLS OF A CLASSROOM ARE AT REST OR IN MOTION?
A simple pendulum hangs from the roof of a train .The string is inclined towards the rear of the train.What is the nature of motion of train ?
a) Uniform b) Accelerated c) Retarded d) At rest
A train starting from rest attains a velocity of 72 km/h in 5 minutes. Assuming that the acceeration is uniform. Find the acceleration and the distance traveed by the train for attaining this velocity.
all cars r provided with seat belts why?
draw a velocity versus time graph of a stone thrown vertically upwards with a velocity v and then coming downwards after attaining the maximum height.
Difference between mass and weight
A body travels 2m in the 2nd seconds and 6m in the next four seconds . what will be the distance travelled in the 9th second.
a body can have zero average velocity but not zero average speed . justify
Two identical balls are at rest side by side at the bottom of a hill. Sometime after ball A is kicked up the hill, ball B is given a kick up the hill. Ball A is headed downhill when it passes ball B headed up the hill. At the instant when ball A passes ballB, it has the same
(A) Position and velocity as ball B
(B) Position and acceleration as ball B
(C)Velocity and acceleration as ball B
(D)Displacement and velocity as ball B
A body covers 4m in 3rd second and 12m in 5th second. If the motion is uniformly accelerated, how far will it travel in the next 3 seconds?
An electric train is moving with a velocity of 120 km/ hr. How much distance will it move in 30 seconds.
what are the similarities between distance and displacement ?
A car starts from rest and accelerates uniformly for 10 s to a velocity of 8 m/s. It then runs at a constant velocity and is finally brought to rest in 64 m with a constant retardation. The total distance covered by the car is 584 m. Find the value of acceleration, retardation and total time taken.
Give two examples of bodies having non-uniform motion
what type of motion uniform or non-uniform is exhibited by a freely falling body? give reasons for your answer
A car accelerates uniformly from 18 km/h to 36 km/h in 5 seconds.
calculate the -
b)distance covered by the car
Copyright © 2020 Applect Learning Systems Pvt. Ltd. All rights reserved.
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)