If the error in measurement of mass of a body be 3% and in the measurement of miss of a body be 3% and in the measurement of velocity he 2%. What will be maximum possible error in calculation of kinetic energy?

Explanation

K.E. = `1/2 mv^(2)`
`:. (Deltak)/(k) = (Deltam)/(m) + (2Deltav)/(v) rArr (Deltak)/(k) xx 100 (Deltam)/(m) xx 100 + 2((Deltav)/(v)) xx 100`
`:.` Percentage error in K.E. = `3% + 2 xx 2% = 7%`