World 1 · Kinematics · 6 minHorizontal Launch
Sideways motion + gravity
Teaching this? Open projector mode
Fire a ball sideways off a ledge and two things happen at once: it keeps its horizontal speed while gravity pulls it down. The two are independent — horizontal distance is just speed × fall-time.
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From the same ledge, the ball is launched horizontally at twice the speed. Compared with the first launch, it…
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