Question

A truck pushes a mound of dirt 5 meters with a force of 75 newtons. how much work has been done?

Answer 1

Work(W) = F-S
=75*5
= 375 Joule ans dood

Answer 2

Given:

A truck pushes a mound of dirt 5 meters with a force of 75 newtons.

To Find:

The work is done.

Solution:

To find the work done we will follow the following steps:

As we know,

Work is also a form of energy. work done can be negative, positive or zero.

If both force and displacement are in the same direction then the work done is positive.

SI unit of Work done is Nm or joule.

Work = force × displacement× cos(theta)

cos(theta) = 1 as theta = 0°.

Work = 75 Newtons × 5 metres

Work = 375 Nm or joule.

Henceforth, work done by a truck in pushing a mound of dirt 5 meters with a force of 75 newtons is 375 joule.