The percentage errors in the measur...
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The percentage errors in the measurement of mass and speed are 2% and 3% respectively. How much will be the maximum error in the estimate of kinetic energy obtained by measuring mass and speed ? (1) 11 % (2) 8 % (3) 5 % (4) 1%

NEET/Medical Exams
Physics
Solution
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( begin{aligned} K E &=frac{1}{2} m v^{2} frac{Delta K E}{K E} &=frac{Delta m}{m}+2 frac{Delta V}{V} &=2+2(3) &=8 cdot 10 & quad[underline{k}=end{aligned} )
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