Q3 The percentage error in the measurement of mass and speed of a body are 2%
and 3% respectively the maximum percentage error in the estimate of kinetic
energy of a body will be
a) 2%. b) 3%. C). 8%. D). 5%
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Explanation:
Given percentage errors in mass and velocity = 2% and 3% respectively
The kinetic energy of the particle is given by
KE = mv ^2/2
The percentage error in kinetic energy will be
Δm/m×100+2Δv/v ×100
= 2+6
= 8%
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