Q1: You throw a ball vertically upward, and as it leaves your hand, its speed is 22.0 m/s.
a) How high (in m) does it rise above the level where it leaves your hand?
b) How long (in s) does it take to reach its highest point?
c) How long (in s) does the ball take to return to the level where it left your hand after it reaches its highest point?
d) Assume that the upward direction is positive and the downward direction is negative. What is the ball's velocity (in m/s) when it returns to the level where it left your hand? (Indicate the direction with the sign of your answer.)
Q2) A solid metal ball is thrown directly downward, with an initial speed of 7.20 m/s, from the top of a structure at a height of 29.5 m. How much time (in s) does it take before striking the ground?
Q3) A certain freely falling object, released from rest, requires 1.65 s to travel the last 36.0 m before it hits the ground.
(a) Find the velocity of the object when it is 36.0 m above the ground. (Indicate the direction with the sign of your answer. Let the positive direction be upward in m/s.)
(b) Find the total distance the object travels during the fall in m.
Q4) A ball is hit with a paddle, causing it to travel straight upward. It takes 3.20 s for the ball to reach its maximum height after being hit. Treat upward as the positive direction.
a) What is the ball's initial velocity (in m/s), just after it is hit? (in m/s upward)
b) What height (in m) does it reach above the level where it was hit?