PHYS 151Q.005 1-28-2008

PHYS 151Q.005 - Define g=9.8m/s^2 near earth surface The pull of gravity causes objects to free fall The equations are the same as const accel 2 1

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Day 3 Mon 1-28-08 PHYS 151Q.005 2.4 Constant Acceleration When a is constant, here are important equations Ex 2-3. A jetliner touch down at 270km/h, the deceleration of plane is 4.5m/s2, what is the minimum runway length on which this aircraft can land? 3 2 2 2 270 10 270 75( ) 60 60 sec 0, 75( ), 4.5( ) sec sec 0 75 2( 4.5)( ) 0 5625 9 625 f o km m hr m m v v a d d d = = = = = - = + - = - = 2.5 - Acceleration of Gravity
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Unformatted text preview: Define g=9.8m/s^2 near earth surface The pull of gravity causes objects to free fall The equations are the same as const. accel 2 1 2 2 f o o o f o v v gt x x v t gt v v gd =--= + = + 2 2 2 1 2 2 ( ) f o o o o f o o v v at x x d x x v t at v v a x x = +-=-= + = +-...
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This note was uploaded on 05/22/2008 for the course PHYS 151Q taught by Professor Wang during the Spring '08 term at UConn.

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