Using v² = u² + 2gh with downward positive: v² = 20² + 2(10)(25) = 400 + 500 = 900. So v = 30 m/s
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JEE Main 2021 — Physics Mechanics
easy
mcq
2021
Official previous-year question
Verified 30 May 2026.
Question
A ball is thrown vertically upward with velocity 20 m/s from a tower of height 25 m. The speed with which it hits the ground is (g = 10 m/s²):
Options
- A25 m/s
- B30 m/s
- C35 m/s
- D40 m/s
Solution
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