an 85 - kg rock climber, when reaching the summit, built up 250,000 j of gravitational potential energy. how…
an 85 - kg rock climber, when reaching the summit, built up 250,000 j of gravitational potential energy. how high did the climber go? meters
Answer
Answer:
300.12
Explanation:
Step1: Recall potential - energy formula
$U = mgh$
Step2: Solve for height $h$
$h=\frac{U}{mg}$
Step3: Substitute values
Given $U = 250000\ J$, $m = 85\ kg$, $g=9.8\ m/s^{2}$. Then $h=\frac{250000}{85\times9.8}\approx300.12\ m$