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A man starts walking from a point on the...

A man starts walking from a point on the surface of earth (assumed smooth) and reaches diagonally opposite point. What is the nature of work done by him?

A

zero

B

positive

C

negative

D

nothing can be said

Text Solution

Verified by Experts

The correct Answer is:
A
`W=F.d=0`
Since `d=(-x+x)=0`
(Diagonally opposite point)
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PREMIERS PUBLISHERS-WORK, ENERGY AND POWER -MULTIPLE CHOICE QUESTIONS (OTHER IMPORTANT QUESTIONS & ANSWERS)
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