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Author Question: A car of mass 1 000 kg moves with a speed of 50 m/s on a circular track of radius 100 m. What is the ... (Read 177 times)

Davideckstein7

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on: Jul 28, 2018
A car of mass 1 000 kg moves with a speed of 50 m/s on a circular track of radius 100 m. What is the magnitude of its angular momentum (in kgm2/s) relative to the center of the race track?
 a. 5.0  102
  b. 5.0  106
  c. 2.5  104
  d. 2.5  106
  e. 5.0  103

Question 2

A uniform rod (length = 2.4 m) of negligible mass has a 1.0-kg point mass attached to one end and a 2.0-kg point mass attached to the other end. The rod is mounted to rotate freely about a horizontal axis that is perpendicular to the rod and that passes through a point 1.0 m from the 2.0-kg mass. The rod is released from rest when it is horizontal. What is the angular velocity of the rod at the instant the 2.0-kg mass passes through its low point?
 a. 1.7 rad/s
  b. 2.2 rad/s
  c. 2.0 rad/s
  d. 1.5 rad/s
  e. 3.1 rad/s


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asware1

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

B

Answer to Question 2

A


Davideckstein7

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Reply 2 on: Jul 28, 2018
Gracias!

cici

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Reply 3 on: Yesterday
Wow, this really help

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