Question:medium
If a ball is thrown horizontally with a velocity of $10\text{ ms}^{-1}$ from the tower of height 45 m, then it strikes the ground at a distance of $(g=10\text{ ms}^{-2})$
If a ball is thrown horizontally with a velocity of $10\text{ ms}^{-1}$ from the tower of height 45 m, then it strikes the ground at a distance of $(g=10\text{ ms}^{-2})$
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Logic Tip: The formula for time of flight in a pure horizontal projection is always $t = \sqrt{\frac{2h}{g}}$. Memorizing this allows you to skip the kinematic setup entirely: $t = \sqrt{90/10} = \sqrt{9} = 3$ seconds. Then multiply by $u_x$ immediately.
Updated On: Apr 27, 2026
- 25 m
- 40 m
- 20 m
- 30 m
- 45 m
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The Correct Option is D
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