Author Question: When you toss a ball upward, after the ball leaves your hand A) the force of your hand moves it ... (Read 77 times)

NguyenJ · **on:** Jul 29, 2018

When you toss a ball upward, after the ball leaves your hand

A) the force of your hand moves it up and gradually changes direction.
B) the upward force changes direction at the top of the path.
C) we see that force and velocity are essentially the same thing.
D) none of the above

Question 2

At a distance of 14,000 km from the center of Planet Z-99, the free-fall acceleration is 32 m/s2. What is the free-fall acceleration at a point 28,000 km from the center of this planet?

A) 8.0 m/s2
B) 16 m/s2
C) 128 m/s2
D) 4.0 m/s2
E) 2.0 m/s2