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A car C of mass m is initially at rest on the boat A of mass M tied to the identical boat B of same, mass M through a massless inextensible string as shown in the figure. The car accelerates from rest to velocity vo with respect to boat A in time to sec. At time t = to the car applies brake and comes to rest relative to boat in negligible time. Neglect friction between boat and water find the velocity of boat A just after applying brake. Mmvo (6) M+2m) (M+m) (2M+m)(M+ m) 2Mmvo (D) zero (M+2m)(M+m) Mmvo ( A 2M

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