(a) Define the term ‘average power’.
(b) When a player hits a football, it moves along the curved path and then falls to the ground, Calculate the work done by the force of gravity on the football.
© Two friends Ram and Shyam, each having zveight of 40 kg, go for rock climbing. Ram climbs to a height of 3 m in 10 s and Shyam covers the same height in 12 s. Is the work done by Ram and Shyam equal or not ? Compare the power of Ram and Shyam.