A train has a rest length of 100m. Traveling at a very high velocity, it...
A train has a rest length of 100m. Traveling at a very high velocity, it...
A train has a rest length of 100m. Traveling at a very high velocity, it goes through a tunnel of length 80m. observers located at both ends of the tunnel note that at one instant the train appears to exactly fit within the tunnel. What is the velocity of the train expressed in unit of c?
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Asked by Bintan on 19th June, 2021
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