Unformatted text preview: the velocity and acceleration in each interval. The larger the interval the less accurate the estimate over this interval is. Our text book develops slightly more detailed expressions, but the core concept for this and all the more sophisticated treatments is the same: if we know the forces, Newtons second law lets us predict the motion. Calculations 1. Air Resistance on a Baseball . A thrown ball will encounter an air resistance force proportional to the square of its diameter d and its speed v . This drag force is given by F d ( v ) = ± . 22 kg m 3 ² d 2 v 2 80...
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 Fall '08
 Staff
 Physics, Force, small time interval

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