A car accelerates from rest to 90km/h in 10 seconds. What is its acceleration inm/s square?

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A car accelerates from rest to 90km/h in 10 second. What is its acceleration in m/s square?
90km/hr (1 hr/3600 s) (1000 m/km) = 25 meters/second
acceleration = change in velocity / change in time
= (25 - 0) / 10 = 2.5 m/s^2