Unformatted text preview: //\\ 3. A meter stick is initially at rest in a horizontal position. It is free to rotate about the
50 cm point. A force of 25 N is applied to the 75 cm point in a direction that makes
an angle of 30 degrees below the 1.0 m end of the meter stick. Another force of 20 N is applied to the 10 cm point in a direction that makes an angle of 40 degrees below
the 0 cm end of the meter stick. a. What is the magnitude of the total torque on the meter stick? b. If the moment of inertia of the meter stick is 0.33 kg—mz, what is the magnitude of
the angular acceleration of the meter stick? 4. Three particles are connected by light rigid rods and are located in the X — y plane as follows. A 5.0 kg particle is located at X = - 5.0 m, y = - 5.0 m. A 3.0 kg particle is located at X = + 3.0 m, y = + 4.0 m. A 4.0 kg particle is located at X = - 4.0 m, y = 0.
Calculate the moment of inertia for this system of particles for: a. Rotation about the X — axis.
b. Rotation about the y — axis.
c. Rotation about the z — axis. ...
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- Fall '08