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A girl is carrying a school bag of 3 kg ...

A girl is carrying a school bag of 3 kg mass on her back and moves 200 m on a levelled road. If the value of g be `10 m//s^(2)`, the work done by the girl against the gravitational force will be :

A

`6 xx10^3 J`

B

6 J

C

0.6 J

D

zero

Text Solution

Verified by Experts

The correct Answer is:
D
The gravitational force (F) acting on the bag, i.e., weight of the bag (3 kg) and displacement (s = 200 m) are parependicular to each other. We know no work is done when F and s are perpendicular to each other.
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