- #1
crimsonn
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Homework Statement
use the work energy theorem to find the force required to accelerate an electron (m=9.11 X10^-31 kg) from a speed of 1.50 X10^7 m/s in a distance of .0125
Homework Equations
W=Fd KE= 1/2mv^2
W=KE
The Attempt at a Solution
I've tried this problem about eight times, and each time I managed to get a different answer, but this is my try at a solution
W=Fx
W/x= F
W=1/2mv^2
mv^2/2x = F
however, this does not work for me.
the answer is 3.56 X10 -19N