centre is 6 kgm?. Its M.I. about an axis circular disc about an axis passing through is perpendicular to its plane and just touchino Q. 13: The moment of inertia of uniform circular disc about an axis paSsing throue perpendicular to its plane and just touchin rim will be (b) 30 kg m² (a) 18 kg m? (c) 15 kg m² (d) 3 kg m?

Compute the combined moment of the two 80-lb forces about (a) point O and (b) point A. The moment is positive if counterclockwise, negative if clockwise. Assume a = 5.0 in., b=2.7 in., F-80 lb. y 1 F Answers: (a) Mo i (b) MA-i Ib-in. lb-in.

2. A thin square plate of mass m rotates on a smooth surface with an angular velocity of æn about its mass center. The hook then strikes the peg at P and the plate starts to rotate about point P with no rebound. What is the plate's angular velocity after impact, and the speed vg of the mass center of the plate?

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