Chapter 4, Problem 57R

To determine

To calculate: Gravitational potential energy.

Answer to Problem 57R

Gravitational potential energy is $\underset{\_}{\text{49}\times {\text{10}}^5\text{ J}}$

Explanation of Solution

Given:

Mass = $\text{2500 kg}$

Height = $\text{200 m}$

Formula used:

Gravitational potential energy is given by,

$GPE=mgh$

where $m$ is mass, $g$ ( $\text{9}\text{.8 N/kg}$ ) is gravity and $h$ is height.

Calculation:

Gravitational potential energy is calculated as:

$\begin{array}{l}PE=mgh\\ =(2500\text{ kg)(9}\text{.8 N/kg)(200 m)}\\ \text{ = 49}\times {\text{10}}^5\text{ J}\end{array}$

Conclusion:

Gravitational potential energy is $\underset{\_}{\text{49}\times {\text{10}}^5\text{ J}}$