The speed of a train increases at a constant rate alpha from 0 to v, and then remains constant at a certain interval and finally decrease at a constant rate beta.If L is the total distance travelled,find the expression of the time taken to complete the whole journey t=L/v+v/2(L/alpha +1/beta) PLS SOLVE IT GUYS WHOEVER KNOWS IT, I'LL MARK IT BRAINLIEST!!
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