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Syllabus

give 7 examples of inertia of rest with explanation

How to find the least count of a spring balance?

give examples of inertia of direction with explanation

how many types of inertia are there name them

define one newton force

what is the formula of recoil velocity of a gun?????????

explain why a cricketer moves his hands backwards while catching a fast moving cricket ball.

please explain newton's third law of motion!

what is relation between the newton and dyne ?

if a man jumps out from a boat , the boat moves backwards . why?

Derive the equation for the conservation of momentum

1) The minute hand of a clock is 7 cm long. Calculate the distance covered and the displacement of minute hand of the clock from 9.00 AM to 9.30 AM.

2) An athlete completes a round of a circular track of diameter 200 m in 20s. Calculate the distance travelled by the athlete.

3)A boy is running on a straight road. He runs 500 m towards north in 2 minutes 10 seconds and then turns back and runs 200 m in 1 minute. Calculate his average speed and magnitude of average velocity during the whole journey.

4) Akshil drove his car with speed of 20 km/h while going to his college. When he returned to his home along the same route , the speed of the car is 30 km/h. Calculate the average speed of the car during the entire journey.

name and define three different types of inertia and give an example each

From a rifle of mass 4kg, a bullet of mass 50g is fired with an initial velocity of 35 ms

^{-1}. Calculate the initial recoil velocity of the rifle.Define force and write its si. Unit

The bullet of mass 10g moving with a velocity of 400m/s gets embeded in a freely suspended wooden block of mass700g .what is the velocity aquired by a block

examples of newton's second law of motion

why are road accidents at high speed are very much worse than accidents at low speed???

A body of mass 5 Kg is moving with a velocity of 10 m/s. A force is applied on it so that in 25 s , it attains a velocity of 35 m/s. calculate the value of the force applied.

ALL THE FORMULAS IN THIS CHAPTER FORCE AND LAWS OF MOTION CAN ANY ONE SAY ME ASAP

on what factors does inertia of a body depend?

a rubber ball of mass 50 g falls from a height of 10 cm and rebounds to a height of 50 cm. determine the change in linear momentum and average force between the ball and the ground , taking time of contact as 0.1 s

What is the real definition of Second Law Of Motion

^{2}).how does a karate player breaks a slab of ice with a single blow?

An object of mass 2 kg is sliding with a constant velocity of 4 m s

^{–1}on a frictionless horizontal table. The force required to keep the object moving with the same velocity is(a) 32 N (b) 0 N (c) 2 (d) 8 N

a truck starts from rest and rolls down a hill with a constant acceleration .it travels a distance of 400m in 20s . find the acceleration . find the force acting on it if its mass is 7 metric tonne (1 metric tonne = 1000kg).

a stone of 1kg is thrown with a velocity of 20m/s. across a frozen surface of a lake and comes to rest after travelling a distance of 50m. what is the force of friction between the stone and the ice.

A Bead Of Mass m is attached to one end of a spring of natural length R And spring constant

K = (√3+1)mg/R . other end of the spring is attached toa point A ON the vertical ring of radius R MAKING AN ANGLE OF 30 DEGREE WITH ITS CIRCUMFERENCE THE NORMAL REACTION AT THE BEAD WHEN THE SPRING IS ALLOWED TO MOVE FROM POINT A

a hunter has a machine gun that can fire 50 g bullets with a velocity of 150 m/s . a 60 kg tiger springs at him with a velocity of 10 m/s . how many bullets must the hunter fire per second into the tiger in order to stop him in his track

Why shockers are provided in automobile vehicles?a bullet of mass 20g is horizontally fired with a velocity of 150m/s frm a pistol of mass 2kg. What is the recoil velocity of the pistol?

Find the initial velocity of the car which is stopped in 10 sec by applying brakes .The retardation due to brakes is 2.5m/sec sq.....

Define: INERTIA

A bullet fired from a gun makes a clean whole in a window whereas a stone pebble thrown brakes the whole window.why?

How much momentum will a dumbbell of mass 10 Kg transfer to the floor if it falls from a height of 80 cm? Take its downwards acceleration to be 10 m/s2?

can someone plz tell me the derivations of equations of motions without graph ..

why chinaware is wrapped in straw while transportation?

a bullet of mass 10 g is fired from a rifle with a velocity of 800 m/s . after passing through a mud wall 180cm thick, the velocity drops to 100m/s. calculate the average resistance of the wall.

A gunman gets a jerk on firing a bullet.why??

action and reaction forces do not balance each other. why?

Few examples of balanced and unbalanced force?

why is it difficult to balance our body when we accidentally step on a peel of banana give reasons

An object of mass 1 kg travelling in a straight line with a velocity of 10 m s

^{−1}collides with, and sticks to, a stationary wooden block of mass 5 kg. Then they both move off together in the same straight line. Calculate the total momentum just before the impact and just after the impact. Also, calculate the velocity of the combined object.An object of mass 100 kg is accelerated uniformly from a velocity of 5 m s

^{−1}to 8 ms

^{−1}in 6 s. Calculate the initial and final momentum of the object. Also, find the magnitude of the force exerted on the object.how a karate player can break a pile of tiles with a single blow of his hand

if you shake the branches of tree,the fruits fall down. why?

When a carpet is beaten with a stick dust comes out. why?

A ball of mass 400g dropped from a height of 5m. A boy on the ground hits the ball vertically upwards with a bat with an force of 100N so that it attains a vertically height of 20m. The time for which the ball remains in contact with the bat? (g = 10m/s

^{2})