A stepladder of negligible weight is constructed, with AC = BC = . A painter of

Question

A stepladder of negligible weight is constructed, with AC = BC = . A painter of mass m stands on the ladder a distance d from the bottom. Assume the floor is frictionless. Suggestion: Treat the ladder as a single object, but also treat each half of the ladder separately. (a) Find the tension (T) in the horizontal bar DE connecting the two halves of the ladder. (Use any variable or symbol stated above as necessary.) T = (b) Find the normal forces at A and B. (Use any variable or symbol stated above as necessary.) nA = nB = (c) Find the components of the reaction force (R) at the single hinge C that the left half of the ladder exerts on the right half. (Use any variable or symbol stated above as necessary.) horizontal component magnitude Rx = direction vertical component magnitude Ry = direction Please explain! Thank you!

Explanation / Answer

In part b, Normal force at A and B should add up to.. 66 x 9.8 = 646

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