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Author Question: Omar throws a rock down with speed 2.0 m/s from the top of a tower. The rock hits the ground after ... (Read 128 times)

tingc95

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on: Jul 28, 2018
Omar throws a rock down with speed 2.0 m/s from the top of a tower. The rock hits the ground after 2.0 s. What is the height of the tower? (air resistance is negligible)
 a. 20 m
  c. 44 m
  b. 24 m
  d. 63 m

Question 2

A rock, released at rest from the top of a tower, hits the ground after 2.0 s. What is the speed of the rock as it hits the ground? (g = 9.8 m/s2 and air resistance is negligible)
 a. 15 m/s
  c. 31 m/s
  b. 20 m/s
  d. 39 m/s


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Tonyam972

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Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

B


tingc95

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Reply 2 on: Jul 28, 2018
Excellent

hollysheppard095

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Reply 3 on: Yesterday
Wow, this really help

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