A man moves on a straight horizontal road with a block of mass 2 kg in his hand. If he covers 40 m with an acceleration of 0.5 m/s2, find the work done by the man on the block during the motion.

Given mass of block =2kg, distance covered=40m, acceleration = 0.5m/, now by using the equations of uniform linear motion we have


Now by using the work energy theorem W =


1