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Physics
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Errors of Measurement
question_answer
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 the kinetic energy obtained by measuring mass and speed
A) 11%
B) 8%
C) 5%
D) 1%
Correct Answer:
B
Solution :
\\[E=\frac{1}{2}m{{v}^{2}}\] \% Error in K.E. = % error in mass + 2 × % error in velocity = 2 + 2 × 3 = 8 %