Final answer:
To convert 2240 pounds to kilograms, divide by the conversion factor of 2.2 pounds per kilogram. The closest approximation to the result is 1020 kg.
The correct answer is B.
Step-by-step explanation:
To convert a long ton, which is 2240 pounds, into kilograms, we use the conversion factor that 1 kilogram is about 2.2 pounds. By dividing 2240 pounds by 2.2, we can find the equivalent mass in kilograms.
2240 lb รท 2.2 lb/kg = 1018.18 kg
Looking at the provided options, while none of them is exactly 1018.18, option (b) 1020 kg is the closest approximation.