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Pitch Physics to Your Students: Using PITCHf/x Data from Major League Basbeball - page 28 / 30

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A Word About Forces

xo = 1.664ft

yo = 50.00ft

zo = 6.597ft

vxo = -6.791ft/s

vyo = -123.055ft/s

vzo = -5.721ft/s

ax = 13.233ft/s2

ay = 25.802ft/s2

az = -17.540ft/s2

Problem 6: Given the weight of a baseball is 0.320lbs, find the x, y, and z components of the force exerted on the ball by the air during its flight.

Along z gravity is also in play,

Fx = 0.132lbs

Fy = 0.257lbs

Fz = ?

Fx = 0.132lbs

Fy = 0.257lbs

Fz = 0.146lbs

The magnitude of the force caused by the air is,

The force exerted by the air is about equal to the weight!

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