05ConstantAProblems

05ConstantAProblems - 05 problem solving: constant a model:...

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05 problem solving: constant a model: particle model visualize: shift between these as needed motion diagram pictorial representation: label graphical representation solve assess units? sensible? believable? v fs = v is a s t s f = s i v is t 1 2 a s  t 2 v fs 2 = v is 2 2 a s s
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Example #1: Bob throws a ball straight up at 20 m/s, releasing the ball 1.5 m above the ground. What's the ball's maximum height? What's its impact speed as it hits the ground? model: treat the ball as a particle visualize: motion diagram pictorial representation y 1 = ? v 1 = 0 m/s y 1 = +1.5 m v 0 = +20 m/s y 2 = 0 m v 2 = ? v a
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part 1: maximum height solve adapt equation for use here solve for unknown insert #s and units significant figures assess units? believable? sensible? what happens if initial speed is 0? g = 0? y
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This note was uploaded on 11/14/2011 for the course MECH 115 taught by Professor None during the Fall '06 term at Kettering.

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05ConstantAProblems - 05 problem solving: constant a model:...

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