Skating forces come from overhang. Period. Wrong again MC, and a couple of other posts. Skating forces can be inward or outward.
I think we are all agreed:
1. There is no skating force, = side force, at a null point, and
2. There is an inward skating force when the stylus overhangs a null point.
So, guess what the force is when the stylus underhands a null point.
(ten marks).
I think we are all agreed:
1. There is no skating force, = side force, at a null point, and
2. There is an inward skating force when the stylus overhangs a null point.
So, guess what the force is when the stylus underhands a null point.
(ten marks).