Question: A train and a tunnel both have proper lengths L. The train speeds toward the tunnel, with speed v. A bomb is located at the

A train and a tunnel both have proper lengths L. The train speeds toward the tunnel, with speed v. A bomb is located at the front of the train. The bomb is designed to explode when the front of the train passes the far end of the tunnel. A deactivation sensor is located at the back of the train. When the back of the train passes the near end of the tunnel, this sensor tells the bomb to disarm itself. Does the bomb explode?

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Yes the bomb explodes This is clear in the frame of the train see Figure In this frame the train has ... View full answer

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