A ball of mass 1.5 kg is shot horizontally from a building of height of 11 m with a velocity of 10 m/s.What is the kinetic energy of the ball when it hits the ground?

Question

Quizplus · Accepted Answer

The kinetic energy when the ball hits the ground is the sum of its initial kinetic energy and the kinetic energy due to the potential energy converted during the fall. Initial KE = 0.5 * 1.5 * 10^2 = 75 J. Potential energy converted = mgh = 1.5 * 9.8 * 11 = 161.7 J. Total KE = 75 + 161.7 = 236.7 J, approximately 237 J.

A Ball of Mass 1