the question had a picture to go with it but i can\'t put it in here but here\'s

Question

the question had a picture to go with it but i can't put it in here but here's the problem anyway. figure 10-42 shows particles 1 and 2, each of mass m, attached to the ends of a rigid massless rod length L1 + L2, with L1 and L2 defined as shown. The rod is held horizontally on the fulcrum and then released. what are the magnitudes of the initial accelerations of (a) particle 1 and (b) particle 2? State your answer in terms of the given variables and g period. Note that L2 is greater than L1. i think the answer is supposed to be in equation form but i don't know how its supposed to look.

Explanation / Answer

From Coulomb's Law F = k*q^2/r^2 (assuming equal charges) .. So q = sqrt(F*r^2/k) = sqrt(m1*a1*r^2/k) = sqrt(0.041kg*1.40m/s^2*(0.148m)^2/9.0x… = 3.74x10^-7C = 0.374µC

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