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If gravity is the only force present, what is the total mechanical energy of a glass of milk falling off a table at a time when its potential energy is 15 J and its kinetic energy is 12 J? A. -3J B. 15
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5 votes
If gravity is the only force present, what is the total mechanical energy of a

glass of milk falling off a table at a time when its potential energy is 15 J and
its kinetic energy is 12 J?
A. -3J
B. 15 J
C. 27 J
D. 12 J

User Victor Behar
by
7.5k points

1 Answer

3 votes

Answer:

27 J

Step-by-step explanation:

1. The equation for ME is PE + KE

2. Therefore 15J + 12J = 27J

User Sergey V
by
7.7k points
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