Author Question: Five boxes, each having weight 100 N, are stacked up. The bottom box is the fifth from the top. What ... (Read 62 times)

EY67

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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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Answer to Question 1

B

Answer to Question 2

B



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