Q. The percentage errors in the measurement of a 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?
A) 11%
B) 8%
C) 5%
D) 1%
Explanation
We know that kinetic energy $= \frac{1}{2}mv^{2}$ Required percentage error is 2%+2$\times 3\%\ ie,\ 8\%$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.