Part ( a ) of the drawing shows a bucket of water suspended from the pulley of a

Question

Part (a) of the drawing shows a bucket of water suspended from the pulley of a well; the tension in the rope is 63.0 N. Part (b) shows the same bucket of water being pulled up from the well at a constant velocity. What is the tension in the rope in part (b)?

Significant digits are disabled; the tolerance is +/-2%

Part (a) of the drawing shows a bucket of water suspended from the pulley of a well; the tension in the rope is 63.0 N. Part (b) shows the same bucket of water being pulled up from the well at a constant velocity. What is the tension in the rope in part (b)?

Significant digits are disabled; the tolerance is +/-2%

Explanation / Answer

let weight of bucket= w

for the first figure, T+T- w=0

2T-w=0

2(63)-w=0

w=126N.

for figure b,

T- w= 0

T-126=0

T= 126 N

so tension in the rope in part b= 126 N

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