Question
(a) If your speedometer has an uncertainty of 2.0 km/h at a speed of 90 km/h , what is the percent uncertainty? (b) If it has the same percent uncertainty when it reads 60 km/h , what is the range of speeds you could be going?

a) $2.2 \%$

b) $59 \textrm{ km/h}$ to $61 \textrm{ km/h}$

Solution Video

# OpenStax College Physics Solution, Chapter 1, Problem 19 (Problems & Exercises) (5:13)

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