Question

question 6
jennie is holding a 2 kg hammer 0.4 m above a nail.
what is the potential energy of the hammer?
hint: pe = mgh
a 0.08 j
b 5.00 j
c 7.84 j

Explanation:

Step1: Identify values

Given $m = 2\ kg$, $g=9.8\ m/s^{2}$ (acceleration due to gravity), $h = 0.4\ m$.

Step2: Apply potential - energy formula

$PE=mgh$. Substitute the values: $PE=2\times9.8\times0.4$.
$PE = 7.84\ J$.

Answer:

C. 7.84 J