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a. A thin rod of length 9.2 m and mass 16 kg is supported at a 31 degrees incline. One support is 2.4 m and the other is 8.8 m from the lower end of the rod. Friction prevents the rod from sliding off the supports. Find the normal force exerted on the rod by the lower support. The acceleration of gravity is 9.81 m/s2 . Answer in units of N.

b. Find the normal force exerted on the rod by the upper support. Answer in units of N.

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