A light plank AB can rotated about a horizontal axis

Last updated: 6/10/2023

A light plank AB can rotated about a horizontal axis provided by a fixed hinged O it rests on a platform at the end B A small block of mass m is placed on the plank near the end B at distance from the hinge A small ball of mass m falls from height ho on the platform at distance from the hinge If the collision is perfectly elastic and block and plank are perfectly rigid find the height h to which the block will jump If the answer is Nh then find N m