An 8N block slides down an incline, its initial speed is 7 ms^-1. The work done by the resultant force on the block is

3 J

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6 J

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Information insufficient

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None of the above

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Solution

The correct option is C
Information insufficient

Given data:
Force of the block F= 8N
Initial speed u= 7m/s
The work done is calculated from the formula,
W= F.s cos𝛉
From the given information, we have only force and velocity. But the values of displacement and the angle of inclination are not provided.
hence, the correct option is C.

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