Question 1

How do I convert m/s to mph?

Accepted Answer

Multiply by 2.237. 10 m/s = 22.4 mph. Speed of sound (343 m/s) = 767 mph.

Question 2

What is the speed of sound in m/s?

Accepted Answer

343 m/s at sea level (20°C). Varies with temperature: 331 m/s at 0°C, 352 m/s at 30°C.

Question 3

What's the fastest speed possible?

Accepted Answer

The speed of light (299,792,458 m/s or about 670 million mph) is the universal speed limit. Nothing with mass can reach it.

Question 4

Why do pilots and sailors use knots?

Accepted Answer

One knot = one nautical mile per hour. Nautical miles relate directly to Earth's latitude (1 nm = 1 minute of latitude), simplifying navigation.

M s to MPH Speed Converter - Free Online Tool

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