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Answer :
To find out how much energy the 2022 F1 Ferrari uses during a 90-minute race with a power output of 40 kW, we can follow these steps:
1. Understand the Units:
- Power is given in kilowatts (kW), where 1 kW = 1000 watts (W).
- Energy is typically measured in joules (J), but can be converted to kilojoules (kJ) and megajoules (MJ).
2. Convert Time to Seconds:
- The race duration is 90 minutes. To convert this into seconds, use the conversion:
[tex]\[
90 \text{ minutes} \times 60 \text{ seconds per minute} = 5400 \text{ seconds}
\][/tex]
3. Calculate the Energy in Kilojoules:
- Energy can be calculated using the formula:
[tex]\[
\text{Energy (in kilojoules)} = \text{Power (in kilowatts)} \times \text{Time (in seconds)}
\][/tex]
- Plug the values into the formula:
[tex]\[
\text{Energy} = 40 \text{ kW} \times 5400 \text{ seconds} = 216,000 \text{ kJ}
\][/tex]
4. Convert to Megajoules:
- Since 1 megajoule (MJ) is equivalent to 1000 kilojoules (kJ), convert the energy:
[tex]\[
\text{Energy in MJ} = \frac{216,000 \text{ kJ}}{1000} = 216 \text{ MJ}
\][/tex]
So, the F1 Ferrari uses 216 MJ of energy during the race. Therefore, the correct answer is: 216 MJ.
1. Understand the Units:
- Power is given in kilowatts (kW), where 1 kW = 1000 watts (W).
- Energy is typically measured in joules (J), but can be converted to kilojoules (kJ) and megajoules (MJ).
2. Convert Time to Seconds:
- The race duration is 90 minutes. To convert this into seconds, use the conversion:
[tex]\[
90 \text{ minutes} \times 60 \text{ seconds per minute} = 5400 \text{ seconds}
\][/tex]
3. Calculate the Energy in Kilojoules:
- Energy can be calculated using the formula:
[tex]\[
\text{Energy (in kilojoules)} = \text{Power (in kilowatts)} \times \text{Time (in seconds)}
\][/tex]
- Plug the values into the formula:
[tex]\[
\text{Energy} = 40 \text{ kW} \times 5400 \text{ seconds} = 216,000 \text{ kJ}
\][/tex]
4. Convert to Megajoules:
- Since 1 megajoule (MJ) is equivalent to 1000 kilojoules (kJ), convert the energy:
[tex]\[
\text{Energy in MJ} = \frac{216,000 \text{ kJ}}{1000} = 216 \text{ MJ}
\][/tex]
So, the F1 Ferrari uses 216 MJ of energy during the race. Therefore, the correct answer is: 216 MJ.
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