2004MechSolutions

2004MechSolutions - 2004 AP Physics Mechanics Exam 1 a b m1...

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2004 AP Physics Mechanics Exam 1) a) gL v gL v v m gL m 2 2 2 1 2 2 1 1 = = = b) r v m a m g m T 2 1 1 1 = = - ( 29 L gL m g m r v m g m T 2 1 1 2 1 1 + = + = g m g m g m T 1 1 1 3 2 = + = c) ( 29 + = + = + = 2 1 1 2 1 1 2 1 1 2 m m m gL m m v m v v m m v m f f d) gL m v m K o 1 2 1 2 1 = = ( 29 ( 29 ( 29 ( 29 ( 29 2 1 2 1 2 2 1 2 1 2 1 2 2 1 2 2 1 2 1 m m gL m m m m gL m m v m m K f f + = + + = + = ( 29 ( 29 1 2 1 2 1 2 1 1 m m m m m gL m gL m K K f o + = + = e) g L t gt L 2 2 1 2 = = 2 1 1 2 1 1 2 2 2 2 m m L m g L m m m gL t v x f + = + = = 2 1 2 1 2 1 1 2 1 2 1 1 2 3 2 2 m m L m L m m m L m L m L m m m L m L x L x + + = + + + = + + = + = 2) a) 2 2 2 2 1 t D a at D = = b) i) Graph D vs. t 2 ; the slope of the line will be half the acceleration (there are other correct possibilities) iii) ( 29 s m a a t D slope 9 . 1 2 94 . 0 2
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This note was uploaded on 08/29/2010 for the course PHYS 45925 taught by Professor Ramesh during the Spring '10 term at Berkeley.

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2004MechSolutions - 2004 AP Physics Mechanics Exam 1 a b m1...

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