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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

2 years ago

Answers : (1)

Himanshu Rathour
119 Points
							
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
2 years ago
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