A stone is thrown horizontally at 8 m/s from a cliff 19.6 m high. Taking m/s, how far from the base of the cliff does it land?
Answer and explanation
Correct answer: A. 16 m
- Step 1: Vertical fall from rest: , so s.
- Step 2: Horizontal distance m.
Answer
16 m.
Why not the others: 156.8 m: it multiplies speed by height. 32 m: the time of fall is doubled.
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