The electron mass is 9 × 10−31 kg.
what is the momentum of an electron traveling at a velocity of < 0, 0, -2.7 × 108 > m/s?
Momentum P = mv = 9 x 10-31 x (-2.7 x 108j) = -24.3 x 10-23j kg.m/s
magnitude= 24.3 x 10-23 kg.m/s
In case of any doubt, please do comment sir.
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