Question

Why is it important to know the direction of the force applied to a moving object and the direction in which the object is moving when determining the work done on the object?

Answer 1

Hey mate here your answer...



The object would Accelerate in the direction of the force it would change direction and possibly change speed too. If the force continued to push perpendicular to the velocity there would be no change in speed. But the object would move in a circular path

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Answer 2

Because if the force is acting in one direction and displacement is in the same direction then the work done formula is fscosteta =fscos0

=fscos0

= fs

If displacement is opposite to the direction of force then work done is negative

If displacement is perpendicular to direction of force then work done is 0 as fs cos90

Which is fs cos0

=0

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