Question

Convert a speed of 4.60 mi/s

4.60 mi/s to units of kilometers per minute. Show the unit analysis by dragging the conversion factors into the unit‑factor slots.

Answer 1

One mile is $1mi \approx 1.61km$ of kilometers. One second is $1s = 1/60 min$. Thus, obtain:

$$4.6\dfrac{mi}{s} = 4.6\cdot \dfrac{1.61km}{1/60min} = 4.6\cdot 96.6\dfrac{km}{min} \approx 444 \dfrac{km}{min}$$

Answer. $444 \dfrac{km}{min}$.