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A stone of mass `5`kg, tied to one end of a rope of length `0.8m`, is whirled in vertical circle. Find the minimum velocity at the highest point and at the midway point `[g=9.8m//s^(2)`] |
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Answer» Given : `m=5kg`, `r=0.8m`, `g=9.8m//s^(2)` Velocity at highest point, `v_(H)=sqrt(rg)` `=sqrt(0.8xx9.8)` `=sqrt(7.84)=2.8m//s` Velocity at mid point, `v_(M)=sqrt(3rg)` `=sqrt(3xx0.8xx9.8)` `=4.84 m//s` |
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