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How will you measure the work done ? Whe...

How will you measure the work done ? When
the force is inclined to the direction of motion of the body ?

Text Solution

Verified by Experts

When force and displacement are inclined in each other, the expression for work done (W) by the force on the body is mathematically written as, `W = vec(F)=d vec(r )` Here, the product `vec(F).d vec(r )` is a scalar product (or dot product). Thus, work done is a scalar quantity.
W = F dr cos `theta` where, `theta` is the angle between applied force and the displacement of the body.

The work done by the force depends on the force (F), displacement (dr) and the angle `(theta)` between them.
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