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Author Question: Five boxes, each having weight 100 N, are stacked up. The bottom box is the fifth from the top. What ... (Read 60 times)

EY67

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on: Jul 28, 2018
Five boxes, each having weight 100 N, are stacked up. The bottom box is the fifth from the top. What is the magnitude of the normal force upward exerted by the third box from the top on the second box from the top?
 a. 100 N
  c. 300 N
  b. 200 N
  d. 400 N

Question 2

If the drag force on a car is F at a moderate highway speed v, at what speed would the drag force be doubled?
 a. 1.2v
  c. 1.7v
  b. 1.4v
  d. 2.0v


chevyboi1976

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

B

Answer to Question 2

B


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EY67

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Reply #2 on: Jul 28, 2018
Thanks


chevyboi1976

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Reply #3 on: Jul 28, 2018
Welcome :)


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