The percentage error in the measurement of mass and speed are 5% or 6% respectively the maximum error in the measurement of K.E is
Correct answer: A. 17%
- A. 17%
- B. 30%
- C. 15%
- D. 90%
Explanation
Kinetic Energy = mv^2/2Percentage Error in KE = Percentage Error in Mass + 2(Percentage Error in Speed) The question states percentage error in mass is 5% and the percentage error in speed is 6%.Putting values in the formula for Percentage Error in KE gives5 + 2(6) = 5 + 12 = 17% which is option A.
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