Question

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. If the mass of luggage is 15 kg and height of the old man is 1.60 m. What would be

the potential energy?

d. What is the SI unit of potential energy?​

Answer 1

Answer:

a.the man did not do any work while holding the luggage

b.W=mgh

d.The SI unit of potential energy is joule.

Explanation:

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