Chapter 11.1, Problem 5PP

To determine

Potential energy of the bowling ball.

Answer to Problem 5PP

Potential energy of the bowling ball is $-43.6\text{ J}$

Explanation of Solution

Given:

The given figure is shown below.

Mass of the ball, $m=7.30\text{ kg}$

Rack is used as reference level.

The bowling ball is on the floor.

Formula used:

The potential energy is given as,

  $E_P=mgh$

Where, $E_P$ is potential energy.

Calculation:

Since the ball is on the floor, so height difference will be

  $\begin{array}{c}h=0-0.610\\ =-0.610\text{ m}\end{array}$

Substituting the given values,

  $\begin{array}{l}{E}_P=7.30\times 9.8\times (-0.610)\\ E_P=-43.6\text{ J}\end{array}$

Conclusion:

Thus, the potential energy of the bowling ball is $-43.6\text{ J}$ .