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Author Question: An automobile of mass 2000 kg moving at 20 m/s is braked suddenly with a constant braking force of ... (Read 94 times)

Starlight

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on: Jul 28, 2018
An automobile of mass 2000 kg moving at 20 m/s is braked suddenly with a constant braking force of 10,000 N. How far does the car travel before stopping?
 a. 40 m
  c. 120 m
  b. 80 m
  d. 160 m

Question 2

A barefoot field-goal kicker imparts a speed of 30 m/s to a football at rest. If the football has a mass of 0.50 kg and time of contact with the football is 0.020 s, what is the force exerted on the foot?
 a. 190 N
  c. 600 N
  b. 380 N
  d. 750 N


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sarah_brady415

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Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

D


Starlight

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Reply #2 on: Jul 28, 2018
Thank you!


sarah_brady415

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Reply #3 on: Jul 28, 2018
Always glad to help...


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