Author Question: You toss a ball to your friend. When the ball reaches its maximum altitude, its velocity is A) ... (Read 120 times)

penza · **on:** Jul 27, 2018

You toss a ball to your friend. When the ball reaches its maximum altitude, its velocity is

A) zero.
B) horizontal.
C) 9.8 m/s2.
D) vertical.
E) 9.8 m/s.

Question 2

A can, after having been given a kick, moves up along a smooth hill of ice. It will

A) have a varying acceleration along the hill.
B) have the same acceleration, both up the hill and down the hill.
C) have a constant acceleration up the hill, but a larger constant acceleration when it comes back down the hill.
D) have a constant acceleration up the hill, but a smaller constant acceleration when it comes back down the hill.
E) travel at constant velocity.