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

A Force `F` acting on an object varies with distance `x` as shown in the figure.

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

A

zero J

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)/(2) xx 20 xx 4 - (1)/(2) xx 20 xx 4 = 0 J`.
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