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Author Question: A very thin horizontal, 2.00-m long, 5.00-kg uniform beam that lies along the east-west direction is ... (Read 70 times)

Tirant22

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on: Jul 29, 2018
A very thin horizontal, 2.00-m long, 5.00-kg uniform beam that lies along the east-west direction is acted on by two forces. At the east end of the beam, a 200-N force pushes downward. At the west end of the beam, a 200-N force pushes upward.
 
  What is the angular acceleration of the beam? A) 240 rad/s2 north
  B) 1.33  102 rad/s2 north
  C) zero
  D) 240 rad/s2 south
  E) 1.33  102 rad/s2 south

Question 2

A 900-kg car traveling 30.0 south of east at 12.0 m/s collides with a 750-kg car traveling north at 17.0 m/s. The cars stick together. What is the speed of the wreckage just after the collision?
 
  A) 7.21 m/s
  B) 12.2 m/s
  C) 20.4 m/s
  D) 25.0 m/s
  E) 17.3 m/s


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Amiracle

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

A

Answer to Question 2

A


Tirant22

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Reply #2 on: Jul 29, 2018
Thank you!


Amiracle

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Reply #3 on: Jul 29, 2018
Always glad to help...


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