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Questions  

The percentage errors in the measurement of mass and speed are 2% and 3%, respectively. How much will be the maximum error in the estimation of KE obtained by measuring mass and speed?

a
5%
b
1%
c
8%
d
11%

detailed solution

Correct option is C

Kinetic energy, E=12mv2 ΔEE×100=Δmm×100+2Δvv×100 =2+2×3=8%

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