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An empty box of mass 5kg is found to accelerate up at the rate of `g/6` when a constant force `vec(F)` is applied on it. Howm much mass (in kg ) of sand be filled in it so that box may accelerate down at the same rate ? (g beight the acceleration due to gravity). |
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Answer» Correct Answer - 5 `I=(ml^(2))/3xx3=ml^(2)=10xx(1.25)^(2) =250/16` `omega=omega_(0)+alphar` `(1900-1400)xx(2pi)/60=(25pi)/250 xx16 t` `t=240/48 = 5 sec.` |
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