A car decelerates uniformly and comes to a stop after 10 s. The car's average velocity during deceleration was 50 km/h. What was the car's deceleration while slowing down? A) 10 km/h-s B) 5 km/h-s C) 9.8 m/s² D) 4 km/h-s E) 8 km/h-s

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Quizplus · Accepted Answer

The car's average velocity during deceleration was 50 km/h, which is equal to 13.89 m/s. The car came to a stop after 10 s. So, the car's deceleration was (13.89 m/s) / (10 s) = 1.389 m/s^2, which is approximately equal to 10 km/h-s.

A Car Decelerates Uniformly and Comes to a Stop After