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  3. 3 the lever ab is attached to the 40 mm...

Question: 3 the lever ab is attached to the 40 mm...

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3. The lever AB is attached to the 40 mm diameter shaft at A using a rectangular key, as shown in Figure 3. The key has a square cross section d x d and its length in the direction perpendicular to the figure is 20 mm. What must be the dimension d if the shear stress in the key is not to exceed 35 MPa when a force F- 200 N is applied at B 40 key 500 all dimensions in mm Figure 3

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