A bullet from a gun is fired on a rectangular wooden block with velocity u. When bullet travels 24 cm through the block along its length horizontally, velocity of bullet becomes u/( c) Then it further penetrates into the block in the same direction before coming to rest exactly at the other end of the block. The total length of the block is :

Given figure shows velocity-time graph of a ball of mass 250g rolling on a concretefloor. Compute the acceleration and the frictional force of the floor on the ball?

What will be the ratio of distances moved by a freely falling body from rest in 4^th and 5^th seconds of journey

Given figure shows velocity-time graph of a ball of mass 250g rolling on a concretefloor. Compute the acceleration and the frictional force of the floor on the ball?