The drawing shows an equilateral triangle, each side of which has a length of 1.

Question

The drawing shows an equilateral triangle, each side of which has a length of 1.59 cm. Point charges are fixed to each corner, as shown. The 4.00 C charge experiences a net force due to the charges qA and qB. This net force points vertically downward and has a magnitude of 488 N. Determine (a) charge qA, (b) charge q

Your answer is partially correct. Try again. The drawing shows an equilateral triangle, each side of which has a length of 1.59 cm. Point charges are fixed to each corner, as shown. The 4.00 mu C charge experiences a net force due to the charges qA and qB. This net force points vertically downward and has a magnitude of 488 N. Determine (a) charge qA, (b) charge qB. Number Units Number Units Click if you would like to Show Work for this question: Open Show Work

Explanation / Answer

Both charges has to be negative For net force to be in downward direction. Also by symmetry we can say qA=qB=q.

So,2*(kqQ/l^2)cos30=488

q=qA=qB=1.978 *10^-6 C

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