1. A 15.0-kg box sits on a ramp that is inclined at a =40.0° above the horizontal. The coefficient of static friction between the box and the surface of the ramp is u = 0.350. A constant parallel-to-surface force F is exerted on the box. (a) Free-body diagram. m (b) Find the normal force on the box. (c) Find the maximal F that the box will not start to slide uphill.
1. A 15.0-kg box sits on a ramp that is inclined at a =40.0° above the horizontal. The coefficient of static friction between the box and the surface of the ramp is u = 0.350. A constant parallel-to-surface force F is exerted on the box. (a) Free-body diagram. m (b) Find the normal force on the box. (c) Find the maximal F that the box will not start to slide uphill.
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Transcribed Image Text:1. A 15.0-kg box sits on a ramp that is inclined at a =40.0° above the horizontal. The
coefficient of static friction between the box and the surface of the ramp is uk = 0.350. A
constant parallel-to-surface force F is exerted on the box.
(a) Free-body diagram.
(b) Find the normal force on the box.
(c) Find the maximal F that the box will not start to slide uphill.
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