Question: why are we not using relative velocity vB / A in here? they are both moving... 1 - A 4 0 - l b block

why are we not using relative velocity vB

/

A in here? they are both moving...

1 -

40 - l b

block B is suspended from a

6 - f t

cord attached to a

60 - l b

cart A

,

which may roll freely on a frictionless, horizontal track. If the system is released from rest in the position shown, determine the velocities of A and B as B passes directly under A

.

why are we not using relative velocity vB / A in

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