You are driving your car, and the traffic light ahead turns red. you apply the brakes for 2.85 s, and the velocity of the car decreases to 5.97 m/s. the car's deceleration has a magnitude of 2.20m/s^2 during this time. what is the car's displacement in m?

11.64225 m 

Calculate the acceleration of a boat that has been cruising at 15 m/s but speeds up to 45 m/s in about 6 seconds. Don’t forget your units, m/s2. In order to calculate the acceleration of the boat we first have to identify the suited formula for acceleration in this scenario. 

Hence, a = vf – vi / t. Vi = 15 m/s Vf = 45 m/s T = 6 seconds   

Solution: 
A = 45 m/s – 15m/s / 6s 
A = 5m/s^2 

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