Author Question: A ball is thrown upwards and returns to the same location. Compared with its initial speed its speed ... (Read 179 times)

Mr. Wonderful · **on:** Jul 29, 2018

A ball is thrown upwards and returns to the same location. Compared with its initial speed its speed when it returns is about

A) half as much.
B) the same.
C) twice as much.
D) four times as much.

Question 2

If a freely falling object were equipped with a speedometer on a planet where the acceleration due to gravity is 20 m/s2, then its speed reading would increase each second by

A) 10 m/s.
B) 20 m/s.
C) 30 m/s.
D) 40 m/s.
E) depends on its initial speed