a car is traveling to the left, which is negative direction.The direction of tra

Question

a car is traveling to the left, which is negative direction.The direction of travel remains the same throughout this problem.The car's inital speed is 27.0 m/s,and during a 5.0 s interval, itchanges to the following final speeds. in each case, find theccelertion ( magnitude and algebric sign) and whether jor not thecar si decelerating. for the final speed is 32.6 mls . a car is traveling to the left, which is negative direction.The direction of travel remains the same throughout this problem.The car's inital speed is 27.0 m/s,and during a 5.0 s interval, itchanges to the following final speeds. in each case, find theccelertion ( magnitude and algebric sign) and whether jor not thecar si decelerating. for the final speed is 32.6 mls .

Explanation / Answer

initial velocity v = -27.0 m/s, final velocity v' = -32.6 m/s, timet = 5.0 s so the acceleration a = (v' - v)/t = -1.12 m/s2 note both v and a are negative, so the car is accelerating.

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