Chapter 10, Problem 41A

To determine

Mass of H.

Answer to Problem 41A

Mass of H is $59.86\text{kg}$

Explanation of Solution

Given:

Work done by His $W=176\text{J}$

Height is $d=0.3\text{m}$

speed is constant.

Formula used:

As work done is given as,

  $W=Fd$ ….. (1)

Calculation:

Since $F=mg$ (weight)

So, from (1)

  $\begin{array}{l}W=mgd\\ 176=m\times 9.8\times 0.3\\ \Rightarrow m=\frac{176}{9.8\times 0.3}=59.86\text{kg}\end{array}$