Mathematics · Motion in a Plane
A child stands on the edge of a cliff 10 m above the ground and throws a stone horizontally with an initial speed of 5 m s-1. Neglecting air resistance, the speed with which the stone hits the ground will be (take g = 10 m s-2):
- 125 m/s
- 230 m/s
- 315 m/s✓
- 420 m/s
Correct answer
15 m/s
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