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In the figure, what should be mass m so that block A slide up with a constant velocity? |
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Answer» Correct Answer - 1 sec `a_("rel")=2((4-1)/(4+1))hat(j)=12ms^(-2)` `l= 6m` `l=(1)/(2)a_("rel")t^(2)` `6=(1)/(2)xx12xxt^(2)` `t = 1s` |
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