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Author Question: A ball is projected 125 meters straight upward and then falls the same distance back to its starting ... (Read 129 times)

craiczarry

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on: Jul 29, 2018
A ball is projected 125 meters straight upward and then falls the same distance back to its starting point. Neglecting air resistance, its total time in the air is about
 
  A) 5 s.
  B) 10 s.
  C) 15 s.
  D) more than 20 s.

Question 2

Neglecting air resistance, a ball projected straight upward so it remains in the air for 10 seconds needs an initial speed of
 
  A) 50 m/s.
  B) 60 m/s.
  C) 80 m/s.
  D) 100 m/s.
  E) 110 m/s.


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Brummell1998

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

Answer: B

Answer to Question 2

Answer: A


craiczarry

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

lcapri7

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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