Two small hollow metal spheres hung on insulating threads attract one another as shown.
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What is next sentence??? don't give incomplete question plz..
Answered by
3
Answer:
a.
b. Resolving the tension into components we have T cos θ = W and T sin θ = F where W = mg and F = kq2/r2 and r = 2l sin θ giving F = kq2/(4l2 sin2θ)
Dividing the two expressions we get tan θ = F/mg = kq2/(4l2 sin2θ mg)
solving yields q2 = 4mgl2 (sin2θ)(tan θ)/k. this is the answer of the question.
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