A Rock Is Projected Upward from the Surface of the Moon

question 300

Multiple Choice

A rock is projected upward from the surface of the Moon, at time t=0 s, with an upward velocity of 30.0 m/s. The acceleration due to gravity at the surface of the Moon is and the Moon has no atmosphere. The height of the rock when it is descending with a speed of 20.0 m/s is closest to

• A) 145 m.
• B) 135 m.
• C) 154 m.
• D) 125 m.
• E) 115 m.

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