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Ononiwu Samuel
Answers (1)
Assume all of the mass of the meter ruler is centered at center of gravity at 50 cm. Sum of the torques must be zero Pivot is at 40 cm Torque due to mass of ruler = 10 * 90 = 900 g cm Torque due to 72 g = 30 * 72 = 2160 g cm Torque due to M = M * 30 and
