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Author Question: A driver, traveling at 22 m/s, slows down her 2000 kg truck to stop for a red light. What work is ... (Read 387 times)

AEWBW

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on: Jul 29, 2018
A driver, traveling at 22 m/s, slows down her 2000 kg truck to stop for a red light. What work is done on the truck by the friction force of the road?
 
  A) -2.2  104 J
  B) -4.4  104 J
  C) -4.8  105 J
  D) -9.7  105 J

Question 2

A muon at rest decays in 2.2 s. Moving at 99.00 the speed of light, it would be seen to live for how long?
 
  What will be an ideal response?


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dmurph1496

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

C

Answer to Question 2

16 s


AEWBW

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Reply #2 on: Jul 29, 2018
TY


dmurph1496

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Reply #3 on: Jul 29, 2018
You're welcome


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