Question

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?
O A. 120
B. 27 J
O C. 33
O D. 153

Answer 1

B

Explanation:

Em = Ec + Ep

Em = 12 + 15 = 27 J