The blade of a portable saw and the rotor of its motor have a total weight of 2.5 lb and a…

The blade of a portable saw and the rotor of its motor have a total weight of 2.5 lb and a combined radius of gyration of 1.5 in. Knowing that the blade rotates as shown at the rate ω1 = 1500 rpm, determine the magnitude and direction of the couple M that a worker must exert on the handle of the saw to rotate it with a constant angular velocity ω2 = 2(2.4 rad/s)j.

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