An old man was waiting for a roadways bus at a bus stand with his heavy luggage bag in his hands, He was tiring and used to shift the bag from one hand to another and so on. Shashank was seeing this. He felt uneasy and requested the old man to put his bag on the floor of bus stand near him so that he may be free. Initially the old man looked suspiciously towards Shashank but on persuation he agreed and put his heavy bag on the floor and carefully set on it. Now he was relieved and peaceful.
a) Was the old man applying some force while holding the bag in his hand? If yes, of what type?
b) Was the old man doing some work while holding the bag in his hand? Why?
Answers
Answered by
0
Answer:
Explanation:
a) No work is being done on the book! The book stays still, at constant gravitational potential. All the energy is expended in his body.
b)No, the old man didnot do any work as he didnot move....
Derivation:
work done= force x displacement (W=FXS)
as the displacement is 0
so,w = f x 0
(ie) w= 0
Answered by
0
Answer:Yes
Explanation:He was applying force which is pull.
Similar questions