The green rods apply a 2.6 kN clamping force to the red object, E. The square-threaded screw used to generate the clamping force passes through a threaded opening at B and presses against lever ACE at E. The coefficient of static friction is us = 0.29. Neglect friction at A. The screw has mean radius r= 9 mm and lead L = 2 mm. A B 180 mm D 70 mm (a) Determine the force in member CD in kilonewtons. (Enter the magnitude.) kN (b) Determine the magnitude of the moment in N. m that one must apply to the screw to increase the clamping force. N.m (c) Determine the magnitude of the moment in N. m that one must apply to the screw to decrease the clamping force. N. m

Question
The green rods apply a 2.6 kN clamping force to the red object, E. The square-threaded screw used to generate the clamping force passes through a threaded opening at B and presses against lever ACE at E. The coefficient of static
friction is us = 0.29. Neglect friction at A. The screw has mean radius r= 9 mm and lead L = 2 mm.
A
B
180 mm
D
70 mm
(a) Determine the force in member CD in kilonewtons. (Enter the magnitude.)
kN
(b) Determine the magnitude of the moment in N. m that one must apply to the screw to increase the clamping force.
N.m
(c) Determine the magnitude of the moment in N. m that one must apply to the screw to decrease the clamping force.
N. m
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Transcribed Image Text

The green rods apply a 2.6 kN clamping force to the red object, E. The square-threaded screw used to generate the clamping force passes through a threaded opening at B and presses against lever ACE at E. The coefficient of static friction is us = 0.29. Neglect friction at A. The screw has mean radius r= 9 mm and lead L = 2 mm. A B 180 mm D 70 mm (a) Determine the force in member CD in kilonewtons. (Enter the magnitude.) kN (b) Determine the magnitude of the moment in N. m that one must apply to the screw to increase the clamping force. N.m (c) Determine the magnitude of the moment in N. m that one must apply to the screw to decrease the clamping force. N. m

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