A wooden bar of thickness d 20 cm is symmetrically placed on

Last updated: 5/31/2023

A wooden bar of thickness d 20 cm is symmetrically placed on a hole made in a horizontal tabletop A bullet of mass m 20 g shot vertically up through the hole pierces the wooden bar Within the bar speed of the bullet reduces uniformly from u 100 m s at the bottom to v 80 m s at the top What should the minimum mass of the bar be so that it will not leave the tabletop Acceleration of free fall is g 10 m s 4