5. A car that is traveling at 55 miles/hour south brakes suddenly. It takes 3.5 seconds for the car to come to a full stop. What is the acceleration, in miles/hour? (1 hour = 3600 seconds)

Aproper cool-down routine does which of the following? a). motivates you for your next workout b). the body adjust back to a resting state c). leaves you feeling worn-out d). strengthens muscles