Question

A car accelerates from rest at a constant rate a
for some time after which it decelerates at a
constant rate B and comes to rest. If total time
elapsed is t, then maximum velocity acquired by
car will be?​

Answer 1

Answer:

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Answer 2

Answer:

Initial velocity (u) = 0; Acceleration in the first phase =

Deceleration in the second phase = and total time = t.

When car is accelerating then final velocity (v) or and when car is decelerating,

then final velocity

or .

Therefore total time (t) =

or