6. Intro to Forces (Dynamics)
Equilibrium in 2D
Problem 6b
Textbook Question
Textbook QuestionIn an electricity experiment, a 1.0 g plastic ball is suspended on a 60-cm-long string and given an electric charge. A charged rod brought near the ball exerts a horizontal electrical force F(electric) on it, causing the ball to swing out to a 20 degree angle and remain there. (a) What is the magnitude of F(electric)?
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