Question

part b
what is the mass, in kilograms, of a person who weighs 137 lb?
express your answer to three significant figures and include the appropriate units.
value units
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Explanation:

Step1: Recall the conversion factor

We know that \( 1\space lb \approx 0.453592\space kg \).

Step2: Multiply the weight in pounds by the conversion factor

To find the mass in kilograms, we multiply the weight in pounds (137 lb) by the conversion factor. So, the calculation is \( 137\space lb\times0.453592\space \frac{kg}{lb} \).

Step3: Perform the calculation and round to three significant figures

First, calculate \( 137\times0.453592 = 62.142104\space kg \). Rounding to three significant figures, we get \( 62.1\space kg \) (since the fourth digit is 4, which is less than 5, we round down the third digit).

Answer:

Value: \( 62.1 \), Units: kilograms (or \( kg \))