Question

A 300 kg piano is being lowered into position by a crane while two people steady it with ropes pulling to the sides. Bob's rope pulls to the left, 19 ∘ below the horizontal, with 310 N of tension. Ellen's rope pulls toward the right, 25 ∘ below the horizontal.

What tension must Ellen maintain in her rope to keep the piano descending vertically at a constant speed?

What is the tension in the vertical main cable supporting the piano?

Answer 1

This question can be solved by making free body diagram of the piano.

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