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Author Question: Jasper takes two books of mass m1 and m2 off the floor and places them on a shelf at height h. The ... (Read 122 times)

dbose

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on: Jul 28, 2018
Jasper takes two books of mass m1 and m2 off the floor and places them on a shelf at height h. The change in potential energy of the book with mass m1 is four times that of the book with mass m2 . What is the relationship between m1 and m2?
 a. m1 = 0.25m2
  b. m1 = 0.5m2
 c. m1 = 2m2
 d. m1 = 4m2

Question 2

A boat with mass of 1 200 kg is traveling at 12 m/s. What is the magnitude of the force required to stop the boat if it undergoes a displacement of 85 m?
 a. 2 000 N
  b. 170 N
  c. 8 500 N
  d. 1 000 N


dlook33

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

d

Answer to Question 2

d


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