Question
When non-metric units were used in the United Kingdom, a unit of mass called the pound-mass (lbm) was employed, where 1 lbm = 0.4539 kg . (a) If there is an uncertainty of 0.0001 kg in the pound-mass unit, what is its percent uncertainty? (b) Based on that percent uncertainty, what mass in pound-mass has an uncertainty of 1 kg when converted to kilograms?
1. $0.02\%$
2. $1.0001 \times 10^{4}\textrm{ lbm}$ or
$10001 \textrm{ lbm}$
Solution Video