February 22, 2017

Homework Help: Physics Mechanics (unsolved)

Posted by andrew on Friday, April 13, 2012 at 9:45pm.

An electron of mass 9.1E-31 kg is released from rest at a distance of 7.1 E-10 m from a fixed electron. The force on the movable electron is given by the function F = 2.3E-28/r^2, where r is the distance between the electrons. Find the maximum velocity (in meters/second) of the moving electron after release.

^ we're supposed to use mechanical energy theorems to solve this problem.

Ive tried integrating the F(x) to find the total work, but our teacher didn't specify the distance the object travels, so its impossible to bound the integral.
Solutions? thanks!

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