A ball is projected vertically upward from ground level with an initial speed of
PHYSICS · Multi-part · CBSE · Physics · Work, Energy and Power · Work, Energy and Power
Problem
A 0.25kg ball is projected vertically upward from ground level with an initial speed of 15ms−1. As the ball moves, it experiences a constant downward air resistance of magnitude 1.0N in addition to its weight.
(i) Neglecting air resistance, determine the maximum height the ball would reach.
(ii) Taking air resistance into account, calculate the actual maximum height attained by the ball.
(iii) Compute the mechanical energy lost due to air resistance during the ascent.