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Table-tennis ball has mass 10g and s pee...

Table-tennis ball has mass 10g and s peed of 90m/s. if speed can be measured within an accuracy of 4%. What will be the uncertainty in speed and position?

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Uncertainty in the speed of ball `=(90xx4)/(100)=(360)/(100)=3.6ms^(-1)`
Uncertainty in position `=(h)/(4pi m Deltav)=(6.626xx10^(-34)Js)/(4xx3.14xx10xx10^(-3)kgxx3.6ms^(-1))=1.46xx10^(-33)m`
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