3. For the meter stick shown in Figure 10-4, the force F 1 10.0N acts at 10.0 cm
ID: 2144903 • Letter: 3
Question
3. For the meter stick shown in Figure 10-4, the force F1 10.0N acts at 10.0 cm. What is the magnitude
of the torque due to F1 about an axis through point A perpendicular to the page? Is it clockwise, or is
it counterclockwise? Show your work and give correct units.
4. In Figure 10-4 the force F2.15.0N acts at the point 70.0 cm. What is the magnitude of the torque due
to F2 about an axis through point B and perpendicular to the page? Is the torque clockwise, or is it
counterclockwise? Show your work and give correct units.
Explanation / Answer
3) clockwise torque
Torque, T = r*F*sin(90) = 0.1*10*1 = 1 N.m
4) cockwise torque
Torque, T = r*F*sin(90) = 0.2*15*1 = 3 N.m
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