Coefficient of kinetic friction for wood sliding on the wood
A 11 g bullet is fired into a 12 kg wood block that is at rest on a wood table. The block, with the bullet embedded, slides 5.0 {rm cm} across the table. The coefficient of kinetic friction for wood sliding on wood is 0.20.
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The coefficients of static and kinetic friction for plastic on wood are 0.50 and 0.40, respectively. How much horizontal force would you need to apply to a 3.0 N plastic calculator to start it moving from rest? How much horizontal force would you
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