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Answer to Question #34519 in Electric Circuits for Trace

Question #34519
A car is traveling at 18.0 km/hr when its driver accelerates uniformly at 10.0 m/s2. When the driver is finished accelerating, the car is traveling at 57.7 km/hr.

How long did the acceleration last?
Expert's answer
velocity change is
57.7 km/hr - 18.0 km/hr = 39.7 km/hr = 11.03 m/s
then, acceleration lasts
11.03 m/s / 10.0 m/s2 = 1.103 seconds

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