In-Class Problem 300 Figure shows force-couple system acting on a machine element with a mass of 5 kg. The mass center is half-way between O and A. Replace this force-couple system with an equivalent resultant force and its point of application. 150 N (Both Vector and Scalar Method) y 60° .-.-.

The L-shaped rod AOCD has an 80 kg mass hanging from it at B. The rod is leaning against a smooth wall at A. Point B is half way up OA. There is a journal bearing at C and a thrust bearing at D. They are properly aligned. A force F is pulling in the x-direction at B. Just as the rod comes off of the wall at A, what is the magnitude of the force F. 1 m B F 1m

Express  result of Part 5 in the form of a Cartesian vector.

Determine the net torque of the two forces about the origin. CCW is positive.