- #1
Jrlinton
- 134
- 1
Homework Statement
Homework Equations
E=σ/(2Eo)
σ=2Eoma/e
a=Δv/Δt
The Attempt at a Solution
So doing my best to read the velocity over time graph I came up with
Δv/Δt=(-2E5m/s)/(10E-12s)=-2E17 m/s/s
σ=2Eoma/e
=2(8.99E-9C)(9.109E-31kg)(-2E17m/s/s)/(1.6022E-19)
=-0.020444 C/m^2
but by the first illustration you can see that the sheet has a positive charge so the charge density should be:
0.020444 C/m^2 <----this final answer was incorrect