AN OLD MAN WAS STANDING ON A BUS STAND CARRYING A VERY HEAVY LUGGAGE.SAURABH WAS LOOKING AT THE OLD MAN AND FINDING HIM UNCOMFORTABLE,REQUESTED HIM TO PUT DOWN THE LUGGAGE AND HELPED HIM IN DOING SO.

(a) DID THE OLD MAN DO ANY WORK WHILE HOLDING THE LUGGAGE?
(b) WHAT IS THE EQUATION FOR WORK DONE AGAINST GRAVITY?
(c) WHY DID SAURABH ASK THE OLD MAN TO PUT DOWN THE LUGGAGE?

A) The old man did not do any work while holding the luggage.
B) W=mgh
C) So that the old man could be comfertable.The weight of the luggage was pulling him down.

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