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A electron is accelerated to a kinetic energy of 100 MeV at the end of a...

A electron is accelerated to a kinetic energy of 100 MeV at the end of a linac and then drifts 1.45 m to a target in the laboratory

a) What is the distance from the end of the linac to the target in the rest frame of the electron?

b) As measured in the laboratory, what is the velocity of the electron and how much time does it take for the electron to hit the target after it exits the linac?

c) How much time passes in the rest frame of the electron from exiting to the linac to hitting the target?

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