Question

a 0.5 kg plate falls from a table. at 0.2 s, the plate is 0.6 m above the ground. what is the potential energy of the plate?
$e_{p} = ? \text{ j}$
$e_{p} = mgh$
for gravitational acceleration, use $g = 10 \text{ m/s}^2$.

• $1 \text{ j}$
• $6 \text{ j}$
• $3 \text{ j}$

Explanation:

Step1: Identify the values

We have \( m = 0.5 \, \text{kg} \), \( g = 10 \, \text{m/s}^2 \), and \( h = 0.6 \, \text{m} \).

Step2: Apply the formula \( E_p = mgh \)

Substitute the values into the formula: \( E_p = 0.5 \times 10 \times 0.6 \).
First, calculate \( 0.5 \times 10 = 5 \).
Then, calculate \( 5 \times 0.6 = 3 \).

Answer:

3 J