SOLUTION: Jacob is driving at a speed of 55 kilometers per hour when he sees a speed limit sign. His car takes 10 seconds to decelerate to a speed of 40 kilometers per hour. What is the aver
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Question 801030: Jacob is driving at a speed of 55 kilometers per hour when he sees a speed limit sign. His car takes 10 seconds to decelerate to a speed of 40 kilometers per hour. What is the average acceleration of the car? Choose the closest answer. Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Jacob is driving at a speed of 55 kilometers per hour when he sees a speed limit sign. His car takes 10 seconds to decelerate to a speed of 40 kilometers per hour. What is the average acceleration of the car?
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10 seconds = 10/3600 hours = 1/36 hr
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a = (55-40)/(1/36)
a = 540 km/hr/hr
