If an arrow is shot upward on the moon with velocity of m/s, its height (in meters) after seconds is given by

(a) Find the velocity of the arrow after seconds.

Velocity = m/s
(b) Find the velocity of the arrow after seconds.

Velocity = m/s
(c) When will the arrow hit the moon?

Time = s
(d) With what velocity will the arrow hit the moon?

Velocity = m/s

You can earn partial credit on this problem.