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Pls solve it as soon as possible and show steps And this question is from work power energy

Pls solve it as soon as possible and show steps
And this question is from work power energy

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1 Answers

Himanshu Rathour
119 Points
5 years ago
Let after falling for distance l speed of bucket becomes v
v²=0+2gl/4.....(i)
Now by work energy theorem
Work done by all=change in kinetic energy
(Work done by gravity) +(work done by string) =change in kinetic energy
mg(-l) +(work done by string) =(1/8)m(2gl)....(from i)
Work done by string=5mgl/4

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