**27.  ssm A small spherical insulator of mass 8.00 x 10-2 kg and charge +0.600 µC is hung by a thread of negligible mass. A charge of -0.900 µC is held 0.150 m away from the sphere and directly to the right of it, so the thread makes an angle q with the vertical (see the drawing). Find (a) the angle q and (b) the tension in the thread.

w0905

Free  Body Diagram on the pendulum bob

 

 

 

 

Plug this in for T in the x equation

 

Solve for tan(q)

 

 

 

 

 

 

 

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This page last updated on June 4, 2018