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Two blocks of masses `4 kg` and `6 kg` are kept on a rough horizontal surface as shown. If the acceleration of `6 kg` block is `5n`, then `n` is : |
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Answer» Correct Answer - 2 Check, whether they will move together or not. For `4 kg` block `a_(1) = (50 - 0.5 xx 4g)/(4) = 7.5 m//s^(2)` For `6 kg` block `a_(2) = (90 - 0.5 xx 6g)/(6) = 10 m//s^(2)` `a_(2) gt a_(1) rArr` string gets slack `10 m/s^(2)`. |
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