Asked by Laura

A car is traveling at a steady 90 km/h in a 50 km/h zone. A police motorcycle takes off at the instant the car passes it, accelerating at a steady 7.3 m/s/s.How much time elapses before the motorcycle is moving as fast as the car? How far is the motorcycle from the car when it reaches this speed?
Answered by Damon
90,000 m/3600 s = 25 m/s

v = a t
so
25 = 7.3 t
t = 3.42 seconds

distance car went = 25*3.42
distance cycle went = (25/2)* 3.42

(average speed is half max speed if a is constnt)
Answered by Oscar
How'd you get 25? Where did the 3600 s come from?
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