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The car with 20000 N weight increases its speed uniformly from 18 km/h to 90 km/h...

The car with 20000 N weight increases its speed uniformly from 18 km/h to 90 km/h in 40 s up the inclined rough road with 15 angle and the coefficient of kinetic friction between the car and the ground is k = 0.5. Determine: ▪ the maximum power that must be supplied by the car engine ( = 0.8), ▪ the average power supplied by the engine. ▪ the initial kinetic energy T1 ▪ the final kinetic energy T2 ▪ the distance the car travels during the 40 s time period

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