What is the potential energy of an object with a mass of 3 kg at a height of 10 m?

1 Answer
Meave60
Jan 20, 2016

PEgrav=300 Joules

Explanation:

Potential energy due to gravity is the energy possessed by a body due to its vertical position (height). The equation for determining potential energy due to gravity is PEgrav=m×g×h, where m is mass in kg, g is the acceleration due to gravity, and h is the vertical position (height) in meters.

Given/Known
m=3 kg
g=9.81 m/s2
h=10 m

Unknown
PEgrav

Solution
Substitute the given and known values into the equation.

PEgrav=m×g×h

PEgrav=3kg×9.81m/s2×10m

PEgrav=300kg⋅m2s2=300N⋅m=300 Joules (rounded to one significant figure)

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