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You may also want to check out these Brand name in for and most and car and Spray and on and Lamp and Cover and Paint. Rubber sliding on anything has a higher Cf than wood sliding on that same material. The lead is heavier and so Fv is bigger than with a wood block of the same size. Prices do not include government fees and taxes, any finance charges, any dealer document preparation charge and any emission testing charge. Fv, the vertical force, is why it takes more force to slide a lead block than a wood one. Wild Wild WestPull out your revolver, magnum, rifle or shotgun and shoot down those bad cowboys. Bouncy BallGuide the bouncy ball around all the levels, collecting all the coins you can.

Fractured SkullWell if you're going to make a cake, or a funny home-video, you have to break a few eggs. Intuitively, you know a block of wood will slide with a lighter push than a hunk of rubber, and the wood block will also be easier to move than a block of lead. You can see from this equation that the friction force is larger when Cf is larger. Physical Damage of Liability Insurance, or Delivery Fees. Cf is why you have to push a rubber block harder than a wood block.