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.

Question

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.

Quizplus · Accepted Answer

The Answer of 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.

A Rock Is Projected Upward from the Surface of the Moon