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Homework8 - on a ball in flight is thought to depend on...

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AME 331 Homework 8 Fall 2010 Little Due Friday 10/29 5 . Spin plays an important role in the flight trajectory of golf, ping-pong and tennis balls. Therefore, it is important to know the rate at which spin decreases for a ball in flight. The aerodynamic torque, T , acting
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Unformatted text preview: on a ball in flight is thought to depend on flight speed, V , air density, ρ , air viscosity, μ , ball diameter, D , spin rate (angular speed), ω , and diameter of the dimples on the ball, d . Determine the dimensionless parameters that result. 1 2 3 4...
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