# Physics

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A 5.00 m long rigid beam with a mass of 200.0 kg is supported at each end. A 55.0 kg student stands on the beam, 1.40 m from the left support and a 70 kg student stands 1.2 m from the right support. How much upward force does each support exert on the beam? Be specific by left support and right support.

I am confused...

• Physics -

L = the left and and

The summation of moments about the left end support is 1.4(55) + 3.8(70) - 5R.

Solve for R, the right end support load.

The summation of vertical forces is
L - 55 - 70 + R.

Solve for L.

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