Homework Answers
Q = charge on the shell
- V = k Q / R
Q = -VR/k
using conservation of energy
initial Kinetic energy + initial electric potential energy = final electric potential energy
(0.5) m Vo2 + k Qe/r = k Qe / R
(0.5) m Vo2 - VRe/r = - VRe/R
(0.5) m Vo2 = - Ve + VRe/r
Vo2 = (2/m) (Ve) [R/r -1]
Vo = sqrt((2/m) (Ve) [R/r -1])
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