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Author Question: Two identical objects A and B fall from rest from different heights to the ground and feel no ... (Read 199 times)

yoroshambo

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on: Jul 29, 2018
Two identical objects A and B fall from rest from different heights to the ground and feel no appreciable air resistance. If object B takes TWICE as long as object A to reach the ground, what is the ratio of the heights from which A and B fell?
 
  A) hA/hB = 1/
  B) hA/hB = 1/2
  C) hA/hB = 1/4
  D) hA/hB = 1/8

Question 2

At the same moment from the top of a building 3.0  102 m tall, one rock is dropped and one is thrown downward with an initial velocity of . Both of them experience negligible air resistance.
 
  How much EARLIER does the thrown rock strike the ground?
  A) 0.95 s
  B) 0.86 s
  C) 0.67 s
  D) They land at exactly the same time.


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jamesnevil303

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: A


yoroshambo

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Reply 2 on: Jul 29, 2018
Wow, this really help

dantucker

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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