Question

(iv) The work will be positive, if the angle between force and displacement is
Bh

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Answer 1

Answer:

Work done is positive if the displacement is in the direction of the applied force i.e. when angle between the force and displacement is acute angle and is negative when displacement is the direction opposite to the direction of applied force i.e. when the angle between the force and displacement is obtuse angle.

Answer 2

Answer:

Yes it is true

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