Chapter 10.1, Problem 19SSC

To determine

Work done by gravity on the ball.

Answer to Problem 19SSC

Work done by gravity on the ball is $4.41\text{J}$ .

Explanation of Solution

Given:

Mass of ball is $m=0.180\text{kg}$

Length of fall is $d=2.5\text{m}$

Formula used:

Work done by gravity is given as,

  $W=F_{g}d$ …. (1)

Calculation:

As, $F=mg$ (weight of the ball)

So, from (1)

  $\begin{array}{l}W=mgd\\ =0.18\times 9.8\times 2.5\\ =4.41\text{J}\end{array}$