Question

a 1.4 kg wall clock is hanging 2.7 meters above the ground. how much gravitational potential energy does the wall clock have? remember : $e_g = mgh$ $g = 10 \frac{m}{s^2}$ $e_g = ? j$

Explanation:

Step1: List given values

$m=1.4\ \text{kg}$, $g=10\ \frac{\text{m}}{\text{s}^2}$, $h=2.7\ \text{m}$

Step2: Substitute into potential energy formula

$E_g = mgh = 1.4 \times 10 \times 2.7$

Step3: Calculate the product

$E_g = 14 \times 2.7 = 37.8$

Answer:

$37.8$ J