The amount of WORK done is determined by 2 factors. Describe an example of WORK (using the scientific definition) List the 2 factors that determine the amount of work done.

Question

asked May 2, 2020 198k views

1 Answer

Schlicht · Answer 1 · 2020-05-06T14:20:30+0000

Explanation :

Work is done when a force is applied to create a displacement on an object.

Thus, the work done depends on the two factors i.e.

(1) Applied force (F)

(2) Distance or displacement (d)

Mathematically, work done is
W= F.s

It also depends on the angle between the force and the displacement.

$W=Fs\ cos\ \theta$

For example,

A person carries a weight of 20 kg and lifts it on his head 1.5 m above the surface. So, the work done by him on the luggage will be:

W= F* s

or

W=m* g * s

$W=20\ kg* 9.8\ m/s^2* 1.5\ m$

So,
$W=294\ Joules$

Hence, the work done by him on the luggage is 294 Joules.