NCERT Example 3.7 - Motion in a Plane
Question: A stone is thrown horizontally with a speed of 15 m s⁻¹ from the top of a cliff 490 m high. How long does it take to reach the ground and with what speed does it hit the ground?
Answer: Time to reach ground = **10 s**; speed at impact **? 99 m s⁻¹**.
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