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Physics, 17.09.2019 22:00 STAYxALIVE7814

Asmall, spring-loaded cannon launches a tennis ball from level ground with an initial speed vi at an angle θi with the horizontal. the tennis ball lands a horizontal distance r from its launch point. the highest point the tennis ball reaches during its flight is a distance r 12 above the ground. in terms of r and g, find the following. (you may ignore air ) the time interval during which the tennis ball is in motion(b) the tennis ball's speed at the peak of its path(c) the initial vertical component of its velocity

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