(Ill) The position of a 280-g object is given (in meters)
Chapter , Problem 73(choose chapter or problem)
(Ill) The position of a 280-g object is given (in meters) byx = 5.013 8.012 - 441, where t is in seconds. Determinethe net rate of work done on this object (a) at t = 2.0 s and(b) at t = 4.0 s. (c) What is the average net power inputduring the interval from t = 0 s to t = 2.0 s, and in theinterval from t = 2.0 s to 4.0 s?
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