Homework Help: Physics

Posted by Anonymous on Thursday, November 17, 2011 at 7:22pm.

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 - tchrwill, Thursday, November 17, 2011 at 10:18pm
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.

Answer this Question

Related Questions

physics - A 3.0 m long rigid beam with a mass of 100 kg is supported at each end...
physics - A 3.0-m-long rigid beam with a mass 130 kg is supported at each end. ...
Physics - A 1.500m long uniform beam of mass 30.00 kg is supported by a wire as ...
Physics Really need help!!! - A 3.0-m-long rigid beam with a mass 130 kg is ...
physics - A 43 kg, 5.3-{\rm m}-long beam is supported, but not attached to, the ...
physics - A steel beam (with linear mass density of 6.88 kg/m) has a total ...
physics - A steel beam that is 6.00 m long weighs 332 N. It rests on two ...
physics - A uniform 8 m 1500 kg beam is hinged to a wall and supported by a thin...
physics - A uniform, horizontal beam is 5.00m long and has a weight of 200N. The...
physics HELPP!!!!!!! - A beam resting on two pivots has a length of L = 9.00 m ...

For Further Reading

First Name:
School Subject:
Answer: