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A car decreases its speed from 80km/h to 20km/h in 6sec .what will be it's retardation​

Answer»

Answer:

Explanation:

retardation = -ACCELERATION

                   = -(final velocity - INITIAL velocity)/TIME

                  = -(5.5 - 22.2)/6 [km/hr CONVERTED to m/s]

                 =-(-16.7)/6

                  = -(-2.78)

                 = 2.78 m/s^2

             

                   

                 



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