Problem

\[
\text { Ans }=8 \times 10^{7}
\]
There are 2 choices for your flight to Mars. The standard flight is by the Martian Motion Mover space ship. It travels at 100000 $\mathrm{km} / \mathrm{h}$.
How long will the flight be from Earth to Mars?
You can upgrade your space ship to the new State Of the Art Light-Loco, this travels at about the speed of light - a massive $300000 \mathrm{~km} / \mathrm{second}$.
How long would your flight take on the LightLoco?

Answer

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Answer

\(\boxed{\text{Time}_{\text{Light-Loco}} \approx 0.074 \text{ h} \approx 4.44 \text{ min}}\)

Steps

Step 1 :\(\text{Distance} = 8 \times 10^{7} \text{ km}\)

Step 2 :\(\text{Speed}_{\text{MMM}} = 100000 \frac{\text{km}}{\text{h}}\)

Step 3 :\(\text{Time}_{\text{MMM}} = \frac{\text{Distance}}{\text{Speed}_{\text{MMM}}} = \frac{8 \times 10^{7}}{100000} = 800 \text{ h}\)

Step 4 :\(\text{Speed}_{\text{Light-Loco}} = 300000 \frac{\text{km}}{\text{s}}\)

Step 5 :\(\text{Time}_{\text{Light-Loco}} = \frac{\text{Distance}}{\text{Speed}_{\text{Light-Loco}}} = \frac{8 \times 10^{7}}{300000 \times 3600} \approx 0.074 \text{ h}\)

Step 6 :\(\boxed{\text{Time}_{\text{MMM}} = 800 \text{ h}}\)

Step 7 :\(\boxed{\text{Time}_{\text{Light-Loco}} \approx 0.074 \text{ h} \approx 4.44 \text{ min}}\)

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