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In the arrangement shown in figure, the ...

In the arrangement shown in figure, the string has a mass of 4.5 g. How much time will it take for a transverse disturbance produced at the floor to reach the pulley ? Take `g=10ms^-2`
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The correct Answer is:
`0.02 s`
`v=sqrt((T)/(mu))=sqrt((2xx10)/((4.5xx10^(-3))/(2.25)))=100m//s`
`t=(L)/(v)=(2)/(100)=0.02sec`
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