2023年10月A卷练习 · 第 13 题

Before liftoff, one of a space shuttle's solid rocket boosters contained 489,000 kilograms (kg) of propellant. Exactly 23 seconds after liftoff,374,046 kg of this propellant remained.On average, how much propellant, in kg, did this solid rocket booster burn each second after liftoff?