If percentage error of measurement in velocity and mass are 2%and4% respectively,what is the percentage error in kinetic energy
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Kinetic energy = 0.5mV²
Actual Kinetic energy = 0.5mv²
The one with the error :
1.02 V for velocity
1.04 m for mass
Kinetic energy = 0.5 × 1.04m × 1.0404v²
0.541mV²
The error is :
0.041mv²
Percentage error :
(0.041 / 0.5) × 100 = 8.2%
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