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Author Question: A 2000-kg car experiences a braking force of 10,000 N and skids to a stop in 6 seconds. The speed of ... (Read 66 times)

jparksx

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on: Jul 29, 2018
A 2000-kg car experiences a braking force of 10,000 N and skids to a stop in 6 seconds. The speed of the car just before the brakes were applied was
 
  A) 1.2 m/s.
  B) 15 m/s.
  C) 30 m/s.
  D) 45 m/s.
  E) none of the above

Question 2

A 1000-kg automobile enters a freeway on-ramp at 20 m/s and accelerates uniformly up to 40 m/s in a time of 10 seconds. How far does the automobile travel during that time?
 
  A) 100 m
  B) 200 m
  C) 300 m
  D) 400 m
  E) none of the above


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upturnedfurball

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

Answer: C

Answer to Question 2

Answer: C


jparksx

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Reply 2 on: Jul 29, 2018
Gracias!

diana chang

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Reply 3 on: Yesterday
Wow, this really help

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