In Fig. 6-23, a sled is held on an inclined plane by a cord pulling directly up the

Chapter 6, Problem 22

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In Fig. 6-23, a sled is held on an inclined plane by a cord pulling directly up the plane. The sled is to be on the verge of moving up the plane. In Fig. 6- 28, the magnitude F required of the cords force on the sled is plotted versus a range of values for the coefficient of static friction ms between sled and plane: F1 2.0 N, F2 5.0 N, and m2 0.50.At what angle u is the plane inclined? FF2F10 2 s FFigure 6-23 16 and 22.