FA1 · Q7 · A.1 Kinematics · projectile motion, graphs, show-that questions
Q7: a table tennis ball and the net
Time of fall from a horizontal hit, the vertical velocity–time graph, and a "show that it clears the net" argument using both axes.
SL+HLHarder16 minFree
Hook
A short "show that" with a trap: the net is in the middle of the table. It combines the sideways and the vertical motion in the way that most projectile questions do.
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The time for the ball to reach the net depends on…
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The vertical velocity–time graph for a ball hit horizontally is…