Chapter 10.1, Problem 22SSC

To determine

Mass of the box.

Answer to Problem 22SSC

Mass of the box is $595.24\text{kg}$

Explanation of Solution

Given:

Work done by forklift is $W=7\text{kJ}$

Box is raised to height $d=1.2\text{m}$

Formula used:

Work done is given by,

  $W=Fd$ ….. (1)

Calculation:

As, $F=mg$ (weight)

So,

  $\begin{array}{l}W=mgd\\ \Rightarrow m=\frac{W}{gd}\\ =\frac{7\times {10}^3}{9.8\times 1.2}\\ =595.24\text{kg}\end{array}$