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You are driving down the highway at a constan speed of 100 m/s. You suddenly

see a police car and hit the brakes so  that the  car decelerates at -2 m/s2. Assuming   a 

constant deceleration, how long will it take  for the car to slow down to the posted   

speed limit of 50 m/s?



Sagot :

Answer:

At on average the speed limit may be -25.

Explanation:

At on average speed limit.