Question

a) Work done by a body depends on the time taken to complete that
work,true or false​

Answer 1

Answer:

Work done is defined as the product of force into displacement

Mathematically, Work = F.x Cosθ

where F = force, x = displacement and θ is the displacement angle

Thus along with force work done also depends on the displacement angle. If force and displacement are in opposite direction then negative work is done on the object i.e it may be subjected to external forces like friction, air resistance, tension force etc.

Hence work done depends on both displacement of the body and the component of external force acting in the direction of its displacement.

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