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Extra: An electron (mass = 9.1 × 10-31 kg) is accelerated from rest to a speed of 2 x 10% m/s in 1 second. (a) What is the momentum of the electron when it has reached this speed? (b) What was the average force needed to accelerate the electron to this speed? (c) Suppose the same force as in (b) continues to act on the electron, how fast will it be 0.5 s later?

Extra: An electron (mass = 9.1 × 10-31 kg) is accelerated from rest to a speed of 2 x 10% m/s in 1 second. (a) What is the momentum of the electron when it has reached this speed? (b) What was the average force needed to accelerate the electron to this speed? (c) Suppose the same force as in (b) continues to act on the electron, how fast will it be 0.5 s later?

Classical Dynamics of Particles and Systems
Classical Dynamics of Particles and Systems
5th Edition
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Stephen T. Thornton, Jerry B. Marion
Chapter14: Special Theory Of Relativity
Section: Chapter Questions
Problem 14.39P
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9.1 x 10-31 kg) is accelerated from rest to a speed of 2 x 108 Extra: An electron (mass : m/s in 1 second. (a) What is the momentum of the electron when it has reached this speed? (b) What was the average force needed to accelerate the electron to this speed? (c) Suppose the same force as in (b) continues to act on the electron, how fast will it be 0.5 s later? (What, if anything, can you conclude from your results? Do they make sense?)
Transcribed Image Text:9.1 x 10-31 kg) is accelerated from rest to a speed of 2 x 108 Extra: An electron (mass : m/s in 1 second. (a) What is the momentum of the electron when it has reached this speed? (b) What was the average force needed to accelerate the electron to this speed? (c) Suppose the same force as in (b) continues to act on the electron, how fast will it be 0.5 s later? (What, if anything, can you conclude from your results? Do they make sense?)
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