. A 4 kilogram cat is resting on top of a bookshelf that is 2 meters high. what is the cat's gravitational potential energy relative to the floor if the acceleration due to gravity is 9.8 m/s2? a. 6 j b. 8 j c. 20 j d. 78

Physics · High School · Wed Jan 13 2021

Answered on

Given:

mass = 4 kg

height = 2 m

acceleration due to gravity = 9.8 m/s^2

Determine the gravitational potential energy.

Formula for Potential Energy:

PE = mgh

Solution:

Substitute the given values of mass, height and acceleration due to gravity in the formula for acceleration due to gravity.

PE = mgh

PE = (4kg)(2m)(9.8 m/s^2)

PE = 78.4 J

Final answer:

PE = 78.4 J 

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