Answer to Question #64352 in Other Physics for sundus
v_f is the final velocity;
v_i is the initial velocity;
t is the time interval.
60 km/h = 16.67 m/s;
50 km/h = 13.89 m/s.
a = (16.67 - 13.89) / 7.0 = 0.41 m/s
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