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Author Question: The figure shows a 100-kg block being released from rest from a height of 1.0 m. It then takes it ... (Read 100 times)

jjjetplane

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on: Jul 29, 2018
The figure shows a 100-kg block being released from rest from a height of 1.0 m. It then takes it 0.90 s to reach the floor. What is the mass m of the other block? The pulley has no appreciable mass or friction.
 
  A) 60 kg
  B) 54 kg
  C) 48 kg
  D) 42 kg

Question 2

Two bodies P and Q on a smooth horizontal surface are connected by a light cord. The mass of P is greater than that of Q.
 
  A horizontal force (of magnitude F) is applied to Q as shown in the figure, accelerating the bodies to the right. The magnitude of the force exerted by the connecting cord on body P will be
 
  A) zero.
  B) less than F but not zero.
  C) equal to F.
  D) greater than F.


bob

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: B


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