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A force F acting on an object varies wit...

A force F acting on an object varies with distance x

The work done by the force in moving the object from x=0 to x=8 m is

A

zero

B

80 J

C

`-40 J`

D

`40 J`

Text Solution

Verified by Experts

The correct Answer is:
A
Work done = Area under F-x graph with proper algebraic sign
`=1/2xx20 xx4-1/2xx20 xx 4=0J`
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