A car moving at 50 km/h accelerates to 60 km/h in 7.0 seconds. Determine its acceleration.
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Expert's answer
2016-12-29T12:43:12-0500
a = (v_f - v_i) / t, where 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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