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Consider the situation shown in the figu...

Consider the situation shown in the figure. The surface is smooth and the string and the pulley are light. Find the acceleration of each block and tension in the string.

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Let a `3kg` block be moving downward.


Along the plane
`30sin30^(@)-T=3a`
`T-20=2a`
`a=-1m//s^(2)`
`T=18N`
Since the acceleration is negative , i.e. the block of mass is moving upward.
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