lecture3_tth_2101_S11

lecture3_tth_2101_S11 - PHYS 2101 Spring 2011 I....

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Unformatted text preview: PHYS 2101 Spring 2011 I. 2-dimensional Kinematics I. Graphical Kinematics I. Newtons Laws I. Forces A. Gravitational B. Normal C. Friction D. Tension E. Spring PHYS 2101 EX1: You throw a ball with a speed of 10 m/s at an angle of =30 above the horizontal. It hits a wall some distance away on its way back down at a height of 0.6 m above its release point on. a) How long after the ball was released does it hit the wall? b) What speed is the ball traveling when it hits the wall? c) How far away from the point where the ball was released is the wall? Spring 2011 PHYS 2101 CT1: An object decelerates while moving in the negative direction. What is the direction of the objects acceleration? 1. Positive 2. Negative 3. It cannot be determined Spring 2011 PHYS 2101 r v = d r x dt Derivative version: Integral version: r x = r v dt t t Graphically: v = slope of tangent line of x v. t plot Graphically: x = area under curve of v v. t plot t x t 1 t 2 m 2 =v 2 m 1 =v 1 t v t 1 t 2 Spring 2011 PHYS 2101 r a = d r v dt Derivative version: Integral version: r v = r a dt t t Graphically: a = slope of tangent line of v v. t plot Graphically: v = area under curve of a v. t plot t v t 1 t 2 m 2 =a 2 m 1 =a 1 t a t 1 t 2 Spring 2011 PHYS 2101 Constant position: t x t v t a x Spring 2011 PHYS 2101 Constant velocity: t x t v t a v m = v Spring 2011 PHYS 2101 Constant acceleration: t x t v t a a m = a Spring 2011 PHYS 2101...
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This note was uploaded on 06/20/2011 for the course PHYS 2101 taught by Professor Grouptest during the Spring '07 term at LSU.

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lecture3_tth_2101_S11 - PHYS 2101 Spring 2011 I....

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