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A Brass Ball Is Shot Vertically Upward from the Surface

Question 76

Multiple Choice

A brass ball is shot vertically upward from the surface of an atmosphere-free planet with an initial speed of 20.0 m/s. One second later, the ball has an instantaneous velocity in the upward direction of 15.0 m/s.
-What is the magnitude of the acceleration due to gravity on the surface of this planet?


A) 5.0 m/s2
B) 9.8 m/s2
C) 12 m/s2
D) 15 m/s2
E) 24 m/s2

Correct Answer:

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