- #1
TonkaQD4
- 56
- 0
A 500kg 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, 15 degrees below the horizontal, with 500 Newtons of tension. Ellen's rope pulls toward the right, 25 degrees below the horizontal.
(a) What tension must Ellen maintain in her rope to keep the piano desceding at a steady speed?
(b) What is the tension in the main cable supporting the piano?
Well of course I started out by drawing the situation. Bob's rope in the third quadrant at 15 degrees and Ellen's rope in the fourth quadrant at 25 degrees below the x-axis.
(a) What tension must Ellen maintain in her rope to keep the piano desceding at a steady speed?
(b) What is the tension in the main cable supporting the piano?
Well of course I started out by drawing the situation. Bob's rope in the third quadrant at 15 degrees and Ellen's rope in the fourth quadrant at 25 degrees below the x-axis.