[Answered] A driver, traveling at 22 m/s, slows down her 2000 kg truck to stop for a red light. What work is ...

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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 373 times)

AEWBW

Hero Member
Posts: 579

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

Sr. Member
Posts: 343

Reply #1 on: Jul 29, 2018

Answer to Question 1

C

Answer to Question 2

16 s

AEWBW

Hero Member
Posts: 579

Reply #2 on: Jul 29, 2018

dmurph1496

Sr. Member
Posts: 343

Reply #3 on: Jul 29, 2018

You're welcome

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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 373 times)

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