Question

a 12 kg sousaphone is hanging 1.8 meters above the ground. how much gravitational potential energy does the sousaphone have? remember : $e_g = mgh$ $g = 10 \frac{m}{s^2}$ $e_g = ? j$

Explanation:

Step1: Identify the values

We know that \( m = 12\space kg \), \( g = 10\space \frac{m}{s^2} \), and \( h = 1.8\space m \). The formula for gravitational potential energy is \( E_g = mgh \).

Step2: Substitute the values into the formula

Substitute \( m = 12 \), \( g = 10 \), and \( h = 1.8 \) into the formula \( E_g = mgh \).

$$ E_g = 12 \times 10 \times 1.8 $$

Step3: Calculate the result

First, multiply \( 12 \) and \( 10 \): \( 12\times10 = 120 \). Then multiply the result by \( 1.8 \): \( 120\times1.8 = 216 \).

Answer:

\( 216 \)