Physics, 01.11.2019 01:31 rouchedavisin4
As the driver steps on the gas pedal, a car of mass 1 140 kg accelerates from rest. during the first few seconds of motion, the car's acceleration increases with time according to the expression below, where t is in seconds and a is in m/s2. a = 1.14 t - 0.210 t2 + 0.240 t3 (a) what is the change in kinetic energy of the car during the interval from t = 0 to t = 2.60 s? j (b) what is the minimum average power output of the engine over this time interval? w (c) why is the value in part (b) described as the minimum value?
Answers: 2
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As the driver steps on the gas pedal, a car of mass 1 140 kg accelerates from rest. during the first...
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