Will a car with a maximum engine power of 170 liters be able to accelerate in 5 seconds

Will a car with a maximum engine power of 170 liters be able to accelerate in 5 seconds from standstill to a speed of 108 km / h? vehicle weight is 2000kg

Data: Nmax (maximum engine power) = 170 hp; t (acceleration time) = 5 s; V (required speed) = 108 km / h; m (vehicle weight) = 2000 kg; V0 (initial speed) = 0 m / s.

SI: Nmax = 170 hp = 170 * 735.5 W = 125,035 W; V = 108 km / h = 108 * 1000/3600 m / s = 30 m / s.

1) Vehicle acceleration: a = V / t = 30/5 = 6 m / s2.

2) Required power: N = F * V = m * a * V = 2000 * 6 * 30 = 360,000 watts.

Answer: Since N> Nmax, the car will not be able to accelerate in 5 s to 108 km / h.



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