A bullet has a mass of 20 g and is moving with a speed of `1000 cms^(-1)`. It can penetrate 10 cm of a given target before coming to rest. If the same target were only 6 cm thick, what will be the speed of the bullet when it comes out ?

A bullet of mass 50g moving with a speed of 500 ms^(-1) is brought to rest in 0.01s Find the impulse and the average force .

A bullet going with speed 350 m/s enters concrete wall and penetrates a distance of 5.0 cm before coming to rest. Find the deceleration.

A bullet of mass 200 g hits a block of thickness 6 cm with a speed of 100ms^(-1). It emerges with 10% of its initial KE. Find its emergent speed

A bullet of mass 5 g travels with a speed of 500m/s. If it penetrates a fixed target which offers a constant resistive force of 1000N to the motion of the bullet, find (a) the initial kinetic energy of the bullet (b) the distance through which the bullet has penetrated.

A bullet moving with a speed of 100 ms^(-1) can just penetrate into two planks of equal thickness. Then the number of such planks, if speed is doubled will be .

A bullet of mass 20 g is moving with initial speed of 1ms^(-1) just before it starts penetrting a mud wall of thickness 20 cm. If the wall offers a mean resistance of 2.5xx10^(-2)N , the speed (in m/s) of the bullet after emerging from the other side of the wall is nearly equal to:

A bullet of mass 0.03 kg moving with a speed of 400m/s penerates 12 cm into fixed block of wood. Calculate the average force exerted by the wood on the bullet.

A bullet of mass 20 g has an initial speed of 1 ms^(-1) just before it starts penetrating a mud wall of thickness 20 cm. If the wall offers a mean resistance of 2.5 xx 10^(-2)N the speed of the bullet after emerging from the other side of the wall is close to: