Question

2. You decide to lift a 25 kg box to a height of 3 meters. How much work will you do while moving

the box?

Answer 1

W = 735.75[J]

Step-by-step explanation:

Work is defined as the product of force by distance. Therefore we can use the following equation.

`W=F*d`

where:

W = work [J] (units of Joules)

F = force [N] (units of Newtons)

d = distance = 3 [m]

But first, we must determine the force that is equal to the product of mass by gravity (weight of the body).

`F=m*g\\F=25*9.81\\F=245.25[N]`

`W=F*d\\W=245.25*3\\W=735.75[J]`