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Light Train

Science brain teasers require understanding of the physical or biological world and the laws that govern it.


Puzzle ID:#2576
Fun:*** (2.51)
Difficulty:** (1.8)
Submitted By:204_blaze_41****




You're on a train. The train is moving at half the speed of light, or 93,000 mps (miles per second). You turn on a flashlight.
Question: How fast is the light travelling relative to the observer standing alongside the tracks?

a. 93,000 mps
b. 186,000 mps
c. 279,000 mps

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