2.Three charges are on a line as shown. An electron (charge -e, mass m) is released from rest at point A. We want to determine how fast the electron is moving at point B. -Z W W W b. Use conservation of energy to determine the speed of the electron a point B. +Z W a. A common mistake is to calculate the electric force on the electron at point A and then use Newton's 2nd law and constant acceleration kinematics to find the speed of the electron at point B. Why won't this work? -2Z
2.Three charges are on a line as shown. An electron (charge -e, mass m) is released from rest at point A. We want to determine how fast the electron is moving at point B. -Z W W W b. Use conservation of energy to determine the speed of the electron a point B. +Z W a. A common mistake is to calculate the electric force on the electron at point A and then use Newton's 2nd law and constant acceleration kinematics to find the speed of the electron at point B. Why won't this work? -2Z
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part a and b please
Transcribed Image Text:2.Three charges are on a line as shown. An
electron (charge -e, mass m) is released
from rest at point A. We want to
determine how fast the electron is moving
at point B.
-Z
W
W
W
b. Use conservation of energy to determine the speed of the electron a point B.
+Z
W
a. A common mistake is to calculate the electric force on the electron at point A and then use Newton's 2nd
law and constant acceleration kinematics to find the speed of the electron at point B. Why won't this
work?
-2Z
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