13-09-2024
Physics

Middle School

Sitting in a chairlift, Rebecca has a gravitational potential energy of 5,997.6 J. If Rebecca has a mass of 51 kg, how high off the ground is the lift?

A) 6 m
B) 12 m
C) 118 m
D) 612 m

Answer :

MathPhys MathPhys

30-01-2024

Answer:

B) 12 m

Explanation:

Gravitational potential energy is:

PE = mgh

Given PE = 5997.6 J, and m = 51 kg:

5997.6 J = (51 kg) (9.8 m/s²) h

h = 12 m

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