Question: A golf ball falling in air experiences a drag force p/u/ 2 Fa = CdA where A is the cross section of the ball,

A golf ball falling in air experiences a drag force p/u/ 2

Fa = CdA where A is the cross section of the ball,

A golf ball falling in air experiences a drag force p/u/ 2 Fa = CdA where A is the cross section of the ball, p the density of air, ca~ 0.5 is the drag coefficient, u the velocity of the golf ball, and a dimensionless vector pointing in the direction of u. c) What is the terminal velocity of a golf ball that is falling out of the pocket of a careless hang glider? Hint: A golf ball has a mass M~ 45 g, and a diameter D~ 42.7 mm. d) Use dimensional analysis to estimate the distance after which the ball acquires its terminal velocity, and how long it takes to reach the velocity.

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