A). What is the equation that results from choosing the pivot point to be the point from which the mass hangs (where W acts)?

Express your answer in terms of the unknown quantities T_L and T_R and the known lengths x and L. Recall that counterclockwise torque is positive.

B). What is the equation that results from choosing the pivot point to be the left end of the plank (where T_L acts)?

Express your answer in terms of T_L, T_R, W, and the dimensions L and x. Not all of these variables may show up in the solution.

C). What is the equation that results from choosing the pivot point to be the right end of the plank (where T_R acts)?

Express your answer in terms of T_L, T_R, W, and the dimensions L and x. Not all of these variables may show up in the solution.

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