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Author Question: Rita accelerates a 0.40-kg ball from rest to 12 m/s during the 0.15 s in which her foot is in ... (Read 52 times)

xclash

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on: Jul 28, 2018
Rita accelerates a 0.40-kg ball from rest to 12 m/s during the 0.15 s in which her foot is in contact with the ball. What average force does she apply to the ball during the kick?
 a. 48 N
  c. 24 N
  b. 32 N
  d. 64 N

Question 2

A rock is rolled in the sand. It starts at 5.0 m/s, moves in a straight line for a distance of 6.0 m, and then stops. What is the magnitude of the average acceleration?
 a. 2.1 m/s2
  c. 5.4 m/s2
  b. 4.2 m/s2
  d. 6.2 m/s2


FergA

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

B

Answer to Question 2

A


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