A baseball is released at rest from the top of the Washington ...

[saraeharris]

A baseball is released at rest from the top of the Washington Monument. It hits the ground after falling for 5.0 s. What was the height from which the ball was dropped? (g = 9.8 m/s2 and assume air resistance is negligible)
 a. 1.5  102 m
  c. 1.2  102 m
  b. 1.8  102 m
  d. 2.1  102 m

Question 2

A baseball catcher throws a ball vertically upward and catches it in the same spot when it returns to his mitt. At what point in the ball's path does it experience zero velocity and non-zero acceleration at the same time?
 a. midway on the way up
  b. at the top of its trajectory
  c. the instant it leaves the catcher's hand
  d. the instant before it arrives in the catcher's mitt

[meow1234]

Answer to Question 1

C

Answer to Question 2

B

[saraeharris]

Thank you!

[meow1234]

Always glad to help...