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Block B shown in figure , moves downward...

Block B shown in figure , moves downwards with a constant velocity of `20 cm//s`. At t = 0, block A is moving upward with a constant acceleration, and its velocity is `3cm//s`. If at `t = 3s` blocks C has moved 27 cm to the right, determine the velocity of block C at t = 0 and the acceleration of A and C.

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The correct Answer is:
`[a_(A) = 20 cm//s^(2) uarr; a_(C) = 60 cm//s^(2) rarr ; v_(C) = 71 cm//sec larr]`
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