Coefficient of static friction between backpack-table
If the 58-N backpack in Figure 6-22 of the text begins to slide when the spring (k=105 N/m) stretches by 1.2 cm, what is the coefficient of static friction between the backpack and the table?
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A box is sliding up an incline that makes an angle of 11.8 ° with respect to the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is 0.147. The initial speed of the box at the bottom of the incline
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