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Author Question: An object is thrown vertically and has an upward velocity of 18 m/s when it reaches one fourth of ... (Read 146 times)

joe

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on: Jul 28, 2018
An object is thrown vertically and has an upward velocity of 18 m/s when it reaches one fourth of its maximum height above its launch point. What is the initial (launch) speed of the object?
 a. 35 m/s
  b. 25 m/s
  c. 30 m/s
  d. 21 m/s
  e. 17 m/s

Question 2

A ball is thrown vertically upward with an initial speed of 20 m/s. Two seconds later, a stone is thrown vertically (from the same initial height as the ball) with an initial speed of 24 m/s. At what height above the release point will the ball and stone pass each other?
 a. 17 m
  b. 21 m
  c. 18 m
  d. 27 m
  e. 31 m


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CourtneyCNorton

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

D

Answer to Question 2

A


joe

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Reply 2 on: Jul 28, 2018
Gracias!

Sarahjh

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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