EasyNEET TEST
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The percentage error in the measurement of mass and speed of a body are 2% and 3% respectively. What is the maximum percentage error in the estimation of kinetic energy?
A
4%
B
5%
C
8%
D
1%
Explanation
Percentage error formula: ΔK/K ×100 = Δm/m ×100 + 2(Δv/v ×100) ⇒ 2 + 6 = 8%.
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