# 2.998x10^8 m/s is how many kilometers per hour

QUESTION POSTED AT 02/06/2020 - 01:19 AM

QUESTION POSTED AT 02/06/2020 - 01:19 AM

1.079 x 10⁹ km/h

2.998 x 10⁸ m/s has been known as the speed of light.

Let us convert the unit m/s to km/hour.

**Change in unit length:**

If 1 km = 1,000 cm, then

**Change in unit time:**

If , then

**The Process:**

Remember, we must write the results in **scientific notation**, i.e.,

**Thus the result of unit conversion is**

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**Keywords:** speed of light, convert, m/s to km/h, unit length, time, hours, minutes, second, scientific notation

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