A car of 1000 kg can accelerate from rest to v = 90 km/h in a time t = 7.4 s.
(i) Determine the average power delivered by the engine?
(ii) When the power of the car is tripled, then the time it takes to arrive at the similar speed will be equivalent to what fraction of t?
If, rather the power of the car is smaller by a factor of 0.6 and the car accelerates for the similar amount of time, by what factor will the maximum speed reduce?