A person carrying a bag of total mass 25 kg climbs up to height of 5 m in 30 seconds slowly. The power delivered for carrying the bag is-
40.83 W
the force exerted by the man on the bag is equal to the weight of the bag, which is
mg=25×9.8
= 245 N
Work done by the force in taking the bag up of height 5 m
245×5=1225J
Work is done in 30 seconds
The power is delivered is =p=122530
= 40.83 W