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What is the weight of the beam?

  • Thread starter looi76
  • Start date
  • #1
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Homework Statement


A long uniform beam is pivoted at one end. A force of 300N is applied to hold the beam horizontally.
http://img182.imageshack.us/img182/4219/11062008vt2.png [Broken]
What is the weight of the beam?

Homework Equations


Don't know which question to use... need help!


The Attempt at a Solution

 
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Answers and Replies

  • #3
Doc Al
Mentor
44,882
1,131
Ask yourself:
(1) What forces act on the beam? Where do they act?
(2) What torque do they exert about the pivot point?
(3) Since the beam is in equilibrium, what must be the net torque?
 

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