Asked by Lauren
A racing car starting from a standstill can reach a speed of 320 km/h in 6.50 s by exerting an average horizontal force of 1.52 x 10^4N [s] on the pavement. If friction equals 5.2 x 10^3 N, what is the mass of the car?
Answers
Answered by
Steve
a = 320km/hr / 6.5s * 1000m/1km * 1hr/3600s = 13.68 m/s^2
Since F = ma, the net force is 13.68m
Since the net force is 1.52*10^4-5.2*10^3, divide that by a to get m.
Since F = ma, the net force is 13.68m
Since the net force is 1.52*10^4-5.2*10^3, divide that by a to get m.
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