A force of 5 N, making an angle theta wi...

A force of 5 N, making an angle `theta` with the horizontal, actig on an object displaces it by 0.4 m along the horizontal direction. If the object gains kinetic energy of 1J. The horizontal component of the force is

1.5 N

2.5 N

3.5 N

4.5 N

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The correct Answer is:

`W = Deltak implies FS cos theta = 1implies F cos theta =1/S =1/(0.4) = 2.5 N`

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