A meter stick weighing 150 g sits on two knife edges one at
A meter stick weighing 150 g sits on two knife edges, one at the 20 cm mark the other at the 90 cm mark. What is the total upward normal force (in N) exerted by both knife edges?
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a meter stick weighing 150 g sits on two knife edges one at the 20 cm mark the other at the 90 cm mark what is the
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