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Stupid physics problem.
A window washer pulls herself upward using the bucket-pulley apparatus shown in Fig. 4-40. The mass of the person plus the bucket is 64 kg. The person pulls themselves up the rope on the other side of the pully. Assuming friction doesn't apply. What is the force needed to pull the person up with a constant velocity? If she increases this acceleration by 14% how much does she accelerate. I hate my physics class. This is the only class where I do my homework online. Get the answer wrong on one part of the question, use the wrong answer for another part, and get the right answer for another part. Here is another one:
A 19.0 kg box is released on a 34.0° incline and accelerates down the incline at 0.03 m/s2. Find the friction force impeding its motion. What is Mu?
I wouldn't be asking these questions if the didn't confuse me and my teachers confuse me even more.
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If either a public officer or any one else saw a person attempting to cross a bridge which had been ascertained to be unsafe, and there were no time to warn him of his danger, they might seize him and turn him back without any real infringement of his liberty; for liberty consists in doing what one desires, and he does not desire to fall into the river. -Mill
Last edited by Adam Y. : 26-01-2005 at 18:38.
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