temView?assignmentProblemID-81482498 12.61 Problem 12.61 Part A When a wood shel

Question

temView?assignmentProblemID-81482498 12.61 Problem 12.61 Part A When a wood shelf of mass 6.3 kg is fastened inside a Draw a free body diagram for the shelf, assuming three vertical forces (two exerted by the support slot). The orientation of your vectors will be graded. The exact length of your vectors will not be graded but the relative length of one to the other will be graded. the support exerts a torque on the shelf add 32.0 cm .0 cm Figure 1 Il or 1 2.0 cm 3.0 cm rn 1:55 PM 11/13/2017 OType here to search

Explanation / Answer

A] For the free body diagram, the weight of the beam mg acting downwards halfway between the beam from the left most end.

A Normal force acting upwards at 2cm to the right from the left most end of the beam.

The torque due to this normal force will be counter-clockwise and will have magnitude:

T = (0.02)Rysin90o

For equilibrium condition, this will be equal to the clockwise torque from the weight. Use this to determine Ry .

0.02Ry = 0.17mg.

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