FA1 P · Q5 · A.1 Kinematics · vertical motion with constant acceleration
Practice Q5: a stone thrown upwards from a cliff
Maximum height, then the time to reach the sea using one equation with careful signs.
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Up, then down, past the hand and on to the sea: one equation, signs kept consistent.
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A stone is thrown up at 20 m s⁻¹ (g = 10 m s⁻²). The maximum height above the hand is…
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With up as positive, the acceleration of a freely moving stone is…