Question

Mass of a Moving Particle The mass m of a particle moving at a velocity v is related to its rest mass m0 by the equation m = m0 1 − v2 c2 where c (2.98 ✕ 108 m/s) is the speed of light. Suppose an electron of rest mass 9.11 ✕ 10−31 kg is being accelerated in a particle accelerator. When its velocity is 2.84 ✕ 108 m/s and its acceleration is 2.49 ✕ 105 m/s2, how fast is the mass of the electron changing? (Enter your answer in scientific notation rounded to three significant figures.)

1: ✕ 10

2: kg/s

Answer #1

consider a particle of rest mass m0 moving at velocity v in your
s frame write down the expression for the components of its energy
momentum vector p=(p0 ,p1) in terms of m0 and velocity v.now see
this particle from frame s' moving at u velocity what will be its
velocity w and what will be the components of p'=(p0' ,p1') first
in terms of w then in terms of u and v,show that the prime
coordinates are related to...

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A. The mass of an electron is 9.11×10−31 kg. If the de Broglie
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