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Another Torque question

  • Thread starter kitty9035
  • Start date
17
0
1. Homework Statement [
A bridge of length L=72 m and mass 64000 kg is supported at each end. A truck of mass 20000kg is located at x=29m from the left support. Calculate the normal force at each support.

2. Homework Equations
T=F x sinx


3. The Attempt at a Solution
Is the normal force the same as the tension?
 

Answers and Replies

radou
Homework Helper
3,104
6
I'd assume the 'normal' force at the support is the 'vertical' force, i.e. the statical force acting as a reactive force at the support.
 
225
0
think of each support as different possible origins of your system. Then figure out the upward force necessary to keep the sum of torques equal to zero.
 

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