How much of the train is still outside the tunnel

Reference no: EM13539744

A supertrain of proper length 97 m travels at a speed of 0.91c as it passes through a tunnel having proper length 50 m. As seen by a trackside observer, is the train ever completely within the tunnel? Yes No If so, how much room does it have to spare? If not, how much of the train is still outside the tunnel? m

Reference no: EM13539744

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