Markov inequality
Let x be a random variable with fx(x) = (2/X^3) if x>1. Compute P(x>k) and compare it with the upper bound on this quantity given by Markov's inequality.
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A 98 kg log is being moved by placing it on two cylinders. When the log has a linear velocity of 2.76 m/s, a force defined by F = 1.2x3 is applied to the log. How far does the log move before coming to a rest?
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The wheel radius is 46 cm and the height of the center of gravity of the girl above the ground is 75 cm. What is the average force of friction on the girl during the motion? Treat the wheels as thin rings.
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