Calculating Distance Traveled by Light in 19.8 µs

AI Thread Summary
To calculate the distance traveled by light in 19.8 microseconds, use the formula distance = speed × time. Given the speed of light is 3.00 x 10^8 meters per second, first convert 19.8 microseconds to seconds, which is 19.8 x 10^-6 seconds. Multiplying the speed of light by this time yields the distance in meters. Finally, convert the distance from meters to miles using the conversion factor of 1 mile being 1.61 kilometers. This straightforward calculation demonstrates the relationship between speed, distance, and time.
am08
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The speed of light is 3.00 x 108 m/s. How many miles will light travel in 19.8 µs? (One mile is 1.61 km.)

I don't even know where to start, any help would be appreciated.
 
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What's the definition of speed?
 
anyone? help!
 
Again: What does speed mean? (Hint: The units are meters/second.) How does speed relate to distance and time?
 
speed is - distance/time
 
am08 said:
speed is - distance/time
Exactly! So distance = speed X time.

Use that to find out how many meters the light travels in that time. Then convert that answer to miles.
 
thanks for your help doc, was easy enough :)
 

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