Question

A 600 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 degrees below horizontal, with 360N of tension. Ellen's rope pulls toward the right, 27 degrees below horizontal. a. What tension must Ellen maintain in her rope to keep the piano descending at a steady speed? b. What is the tension in the vertical main cable supporting the piano?

Answer 1

a. To find tension must Wellen maintain using below formula

Sum of forces along x- axis = 0

b.To find tension in vertical main cable using below formula

Sum of forces along Y- axis = 0