The position of a 2.6 kg mass is given by z = (2t – 5t2) m, wheret is in seconds. Part A What is the net horizontal force on the mass at t =0 s? Express your answer to two significant figures and include the appropriate units. TH HẢ ? F = Value Units Submit Request Answer Part B What is the net horizontal force on the mass at t=1 s? Express your answer to two significant figures and include the appropriate units. ? F = Value Units Submit Request Answer

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