At any instant t = 0 a motorbike start from rest in a given direction, a car moving with constant speed overtakes the motorbike at that instant when it is moving with a speed 40 m/s. Motor bike accelerates uniformly till t = 18s and
then move with constant speed and overtakes the car at t = 27 s.
The maximum speed of motorbike in m/s is
A) 80
(B) 60
(C) 100
(D) 120
plz tell
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