In the figure, if the box is stationary and the angle between the horizontal and force is increased somewhat, do the following quantities increase, decrease, or remain the same: (a) Fr; (b) fs; (c) FN; (d) fs,max? (e) If, instead, the box is sliding and is increased, does the magnitude of the frictional force on the box increase, decrease, or remain the same?

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4. In the figure, if the box is stationary and the angle between
the horizontal and force is increased somewhat, do the following
quantities increase, decrease, or remain the same: (a) Fr; (b) fsi
(c) FN; (d) fs,max? (e) If, instead, the box is sliding and is
increased, does the magnitude of the frictional force on the box
increase, decrease, or remain the same?
0
x
Transcribed Image Text:4. In the figure, if the box is stationary and the angle between the horizontal and force is increased somewhat, do the following quantities increase, decrease, or remain the same: (a) Fr; (b) fsi (c) FN; (d) fs,max? (e) If, instead, the box is sliding and is increased, does the magnitude of the frictional force on the box increase, decrease, or remain the same? 0 x
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