indicated in the figure. The bar is oriented at an angle of 30 degrees to the dotted line as indicated in the figure. A force of magnitude F and pointed to the right is applied to one end of the bar. What is the torque about the axle that is being applied to the bar by the force F? F 30% F L Hint: think carefully about angles. O VSFL 4 O FL 4 O FL FL
indicated in the figure. The bar is oriented at an angle of 30 degrees to the dotted line as indicated in the figure. A force of magnitude F and pointed to the right is applied to one end of the bar. What is the torque about the axle that is being applied to the bar by the force F? F 30% F L Hint: think carefully about angles. O VSFL 4 O FL 4 O FL FL
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Transcribed Image Text:indicated in the figure. The bar is oriented at an angle of 30 degrees to the dotted line as indicated in the
figure. A force of magnitude F and pointed to the right is applied to one end of the bar. What is the torque
about the axle that is being applied to the bar by the force F?
F
30%
F
L
Hint: think carefully about angles.
O VSFL
4
O FL
4
O FL
FL
Transcribed Image Text:A uniform disk of radius R is free to rotate about its central axis. A mass m is hung vertically from the disk at a
distance 2/5 R from the axis.
R
2R/5
mg
m
What is the magnitude of the force F (the solid-lined arrow in the figure) which must be applied to prevent the
disk from rotating?
3mg/5
2mg/5
5mg/2
mg/5
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