determine the work done in winding up the last 30.0m of a 150.0 m long rope that has a weight of 2550N
2007-06-29 15:52:48 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
This question is really easy
Work = Force * Distance
Force in this problem = weight
Work = 2550N * 30.0m
= 76500 N-m
2007-06-29 16:00:35 · answer #1 · answered by cviperml 2 · 0⤊ 0⤋
Work = Force x Distance
Work = 2550 x 30 Nm
Work = 76,500 Nm
2007-07-03 15:28:51 · answer #2 · answered by Como 7 · 0⤊ 0⤋
If it is being wound onto a drum or capstan, you have to take the mechanical advantage of the pulley into account.
If it is being dragged along the ground, you have to account for friction.
2007-06-29 23:22:07 · answer #3 · answered by Anonymous · 0⤊ 0⤋
The question's very easy if you examine the weight of the rope per unit length: 2250N / 150.0m
2007-06-29 22:58:09 · answer #4 · answered by poorcocoboiboi 6 · 0⤊ 0⤋