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Question

lleure https://www.webassign.net/web/student/Assignment-Responseslsubmit?dep 15929981 5. O -1 points cu104 Po56 Part a of the drawing shows a bucket of water suspended from the pulley of a well; the tension in the rope is 98.0 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? My Notes o Ask Your Teache 6. O -1 points CJ10 4.Po57 A worker stands still on a roof an angle 38.6° above the horizontal. He is prevented from slipping by a static frictional force of 430 N. Rnd the sloped at of mass of the worker. kg

Explanation / Answer

net force is zero

98+98-w = 0

w = 196 N

in part b

total force is zero

T-W = 0

T = W

T = 196 N

2) normal force n = mgcos38.6

f = mgsin38.6

m = 430/9.8sin38.6

m = 70.38 kg

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