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Author Question: Which has greater kinetic energy: a car traveling at 30 km/h or another car of half the mass ... (Read 18 times)

james0929

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on: Jul 29, 2018
Which has greater kinetic energy: a car traveling at 30 km/h or another car of half the mass traveling at 60 km/h?
 
  A) The 30-km/h car
  B) The 60-km/h car
  C) both have the same kinetic energy

Question 2

A car accelerates from 5.0 m/s to 21 m/s at a constant rate of 3.0 m/s2 How far does it travel while accelerating?
 
  A) 41 m B) 69 m C) 117 m D) 207 m


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coreycathey

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

Answer: B

Answer to Question 2

B


james0929

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Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


coreycathey

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Reply #3 on: Jul 29, 2018
Great! Please up vote :D


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