Question

A car accelerates from rest at a constant rate alpha

Answer 1

Answer:

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Answer 2

Answer:   Initially , the acceleration of the car is :

         α=v/t1      eqn 1

          ⇒t1=v/α

          β=v/t-t1

          ⇒t-t1=v/β

add 1 and 2,

           ⇒ t =v [ 1/α + 1/β ]

            ⇒ t = [ αβ/α+β ]v

           ⇒ v = [αβ/α+β]t

Explanation: