A car of mass 1000 kg accelerates uniformly from rest to a speed of 25.0 m s$^{–1}$ in 50.0 s. The car is travelling along a horizontal road.
What is the average useful power output of the car over this period?
1 )
0.50 kW
2 )
2.00 kW
6.25 kW
4 )
12.5 kW
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