Lecture06_Pushkar_2012_Jan30

# Lecture06_Pushkar_2012_Jan30 -...

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Lecture 6 Purdue University, Physics 220 1 Unimportable #31E92AF2,4.00,4.00 #81709E6F,6.00,6.00 #817EE11E,4.00,4.00 #831033A0,6.00,6.00 #834C955A,4.00,4.00

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Lecture 6 Purdue University, Physics 220 2 Lecture 06 Projectile Motion Textbook Sections 4.2 PHYSICS 220
Lecture 6 Purdue University, Physics 220 3 y x 2-Dimensions X and Y are INDEPENDENT! Break 2-D problem into two 1-D problems

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Lecture 6 Purdue University, Physics 220 4 Kinematics in Two Dimensions x and y motions are independent ! They share a common time t x = x 0 + v 0x t + 1/2 a x t 2 v x = v 0x + a x t v x 2 = v 0x 2 + 2a x x y = y 0 + v 0y t + 1/2 a y t 2 v y = v 0y + a y t v y 2 = v 0y 2 + 2a y y
Lecture 6 Purdue University, Physics 220 5 Projectile Motion x = x 0 + v 0x t v x = v 0x y = y 0 + v 0y t - ½ gt 2 v y = v 0y g t v y 2 = v 0y 2 – 2 g y x-direction: a x = 0 y-direction: a y = -g

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Lecture 6 Purdue University, Physics 220 6 Velocity of a Projectile Velocity components of a projectile
Independence of the Vertical and Horizontal motion of Projectiles Lecture 6 Purdue University, Physics 220 7

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8 Relative Velocity We often assume that our reference frame is attached to the Earth. Give examples when the
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Lecture06_Pushkar_2012_Jan30 -...

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