Question

Question #b8162

Answer 1

See below.

Explanation:

The work `W` done by the force `F` along a displacement `s` along a straight line is given by:

`W=Fs`

As energy is tightly related to work, where `E_k` is the kinetic energy of a body, we say:

`W=DeltaE_k`

On the other hand, where `E_p` is the potential energy of a body, we say:

`W=-DeltaE_p`

If work is done on an incline, where `theta` is the angle of inclination, we say:

`W=Fscostheta`