A sports car has a mass of 2 Mg and an engine efficiency of…
A sports car has a mass of 2 Mg and an engine efficiency of e = 0.65. Moving forward, the wind creates a drag resistance on the car of FD = 1.2v2 N, where v is the velocity in m/s. The car accelerates at 5 m/s2, starting from rest. What is the magnitude of the velocity of the car when t=4 s.
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