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Author Question: The rigid object shown is rotated about an axis perpendicular to the paper and through point P. The ... (Read 59 times)

melly21297

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on: Jul 28, 2018

The rigid object shown is rotated about an axis perpendicular to the paper and through point P. The total kinetic energy of the object as it rotates is equal to 1.4 J. If M = 1.3 kg and L = 0.50 m, what is the angular velocity of the object? Neglect the mass of the connecting rods and treat the masses as particles.
 
   


   
  a.
  1.3 rad/s
   
  b.
  1.5 rad/s
   
  c.
  1.7 rad/s
   
  d.
  1.2 rad/s
   
  e.
  2.1 rad/s

Question 2

A mass m = 4.0 kg is connected, as shown, by a light cord to a mass M = 6.0 kg, which slides on a smooth horizontal surface. The pulley rotates about a frictionless axle and has a radius R = 0.12 m and a rotatinal inertia I = 0.090 kgm2. The cord does not slip on the pulley. What is the magnitude of the acceleration of m?
 
 
 
   
  a.
  2.4 m/s2
   
  b.
  2.8 m/s2
   
  c.
  3.2 m/s2
   
  d.
  4.2 m/s2
   
  e.
  1.7 m/s2


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princessflame2016

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

c

Answer to Question 2

a


melly21297

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  • Posts: 565
Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

carojassy25

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  • Posts: 299
Reply 3 on: Yesterday
Great answer, keep it coming :)

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