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Old Jan 8th 2009, 10:35 AM   #1
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Velocity-time line/Acceleration-time line graph.

Graph a velocity-time line (solid) and the acceleration-time line (dashed) of a ball being rolled up an incline by a push of a person's hand, changing direction and rolled back down and stopped by the catch of the person's hand.
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Old Jan 8th 2009, 10:08 PM   #2
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Originally Posted by ariol View Post
Graph a velocity-time line (solid) and the acceleration-time line (dashed) of a ball being rolled up an incline by a push of a person's hand, changing direction and rolled back down and stopped by the catch of the person's hand.
Velocity time graph should be downward sloping, taking positive going up the slope

$\displaystyle v=u+at$
$\displaystyle v=u-(gsin\theta) t$
The acceleration time graph should constant which equals $\displaystyle -gsin\theta$ at any time if the push provided by the hand is ignored.
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