Question

A bullet is fired on a fixed target. It penetrates inside the target through distance d1=4cam and then stops, mass of bullet is m=1kg and of target is M=4kg. Now, identical bullet moving with same velocity is fired on identical target which is placed at rest on frictionless horizontal surface. If the distance (in mm) to which the bullet will penetrate inside the target is d2, then find the value of d2/4?

Answer 1

it's a good idea and a simple question