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Author Question: A person jogs toward a plane mirror at a speed of 3 m/s. How fast is he approaching his image in the ... (Read 195 times)

ARLKQ

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on: Jul 29, 2018
A person jogs toward a plane mirror at a speed of 3 m/s. How fast is he approaching his image in the mirror?
 
  A) 1 5 m/s
  B) 3 m/s
  C) 4 m/s
  D) 5 m/s
  E) 6 m/s

Question 2

A 2.0-kg mass moving at 5.0 m/s suddenly collides head-on with a 3.0-kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses just after the collision?
 
  A) 10 m/s
  B) 2.5 m/s
  C) 2.0 m/s
  D) 0 m/s, since the collision is inelastic
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bigcheese9

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

E

Answer to Question 2

C


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ARLKQ

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Reply #2 on: Jul 29, 2018
Thanks


bigcheese9

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Reply #3 on: Jul 29, 2018
Welcome :)


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