A boy with mass 25kg climbs into a small tree. He sits on a branch that is 2.0 m above the ground.what is his gravitational potential energy with respect to the ground
Mathematics · Middle School · Thu Feb 04 2021
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Given the statement:
A boy with mass 25kg climbs into a small tree. He sits on a branch that is 2.0 m above the ground.
Determine the gravitational potential energy with respect to the gorund.
Formula for gravitational potential energy:
Pgrav = mgh
m = mass
g = acceleration due to gravity ( 9.8 m/s^2)
h = height
Solution:
Substitute the given values of m, g and h to the formula for the gravitational potential energy.
Pgrav = mgh
Pgrav = (25 kg)(9.8 m/s^2)(2.0m)
Pgrav = 490 J
Final answer:
Pgrav = 490 J