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- Homework Statement
- A 2.35kg uniform bar of length 1.3m is held in a horizontal position by three vertical springs as in Figure P8.83. The two lower springs are compressed and exert upward forces on the bar of magnitude F1 = 6.80N and F2 = 9.50N, respectively. Find the force exerted by the top spring on the bar, and the location of the upper spring that will keep the bar in equilibrium.

- Relevant Equations
- Sum of Forces = 0

Sum of Torque = 0?

F = -kx?

I'm able to get the force of the top spring (6.75N upwards) by setting the sum of all forces equal to 0 as everything is stationary. Where I'm stuck is starting the second part of the problem. I initially tried setting the sum of torques equal to 0 using the top spring as a lever arm but unless I missed a variable I'm not really sure how to start the second part.