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Author Question: Changing the positive direction in a reference frame to the opposite direction does not change the ... (Read 261 times)

Medesa

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on: Jul 28, 2018
Changing the positive direction in a reference frame to the opposite direction does not change the sign of which of the following quantities?
 a. velocity
  c. speed
  b. average velocity
  d. displacement

Question 2

A ball is thrown vertically upwards at 9.8 m/s. For its complete trip (up and back down to the starting position), its average velocity is:
 a. 19.6 m/s.
  c. 4.90 m/s.
  b. 9.80 m/s.
  d. not given.


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Alyson.hiatt@yahoo.com

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

C

Answer to Question 2

D


Medesa

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Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

covalentbond

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Reply 3 on: Yesterday
Wow, this really help

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