Physics II workshop_Part_17

Physics II workshop_Part_17 - Problems: 2D Constant...

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36 Problems: 2D Constant Acceleration Kinematics Assume that the acceleration is completely along the y-axis. a x = 0 v x = v 0 x x = x 0 + v 0 x t a y 0 v y = v 0 y + a y t y = y 0 + v 0 y t + 1 2 a y t 2 y = y 0 + 1 2 v 0 y + v y ( ) tv y 2 = v 0 y 2 + 2 a y y y 0 ( ) Also y = y 0 + v y t 1 2 a y t 2 where v y is final velocity 1. HRW 6, Q 4.7 In the figure, the path of a “cream tangerine” (i.e. ball) is shown as it moves up past windows A, B, and C that are identical in size and regularly spaced vertically. Rank the times needed to pass the windows starting with the window having the largest time. (Answers might be A=C>B for example.) Does the regular vertical spacing matter? The tangerine now passes by windows D, E, F that are identical to each other and regularly spaced horizontally. Rank the times needed to pass the windows starting with the window having the largest time. Does the regular horizontal spacing matter? 2. I shoot a ball from a cannon at 15.0 m/s, 60° above the horizontal. It lands on a platform that is 8.0 m vertically above the end of the cannon. Find the horizontal distance from the end of the cannon to the point where the ball hits.
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Physics II workshop_Part_17 - Problems: 2D Constant...

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