- #1
Mark2020
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A screw fastener advances into a nut. Assuming there are no frictional forces (or negligible):
a) Is the action force tangential to the male helical thread (screw) and the reaction tangential (in opposite direction to action) to the female helical thread (nut)
b) or does the action-reaction pair appears along the length of the screw (while advancing into the nut)?
According to my understanding, (a) justifies screw's motion (helical) and should be the answer, otherwise the screw wouldn't be able (due to screw threads) to advance into the nut.
Could someone help me understand the above? (a drawing would be very welcome!)
a) Is the action force tangential to the male helical thread (screw) and the reaction tangential (in opposite direction to action) to the female helical thread (nut)
b) or does the action-reaction pair appears along the length of the screw (while advancing into the nut)?
According to my understanding, (a) justifies screw's motion (helical) and should be the answer, otherwise the screw wouldn't be able (due to screw threads) to advance into the nut.
Could someone help me understand the above? (a drawing would be very welcome!)
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