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A boy standing at the top of a tower of 20m height drops a stone. Assuming g = 10 ms⁻², the velocity with which it hits the ground is
Options
(a) 10 m/s
(b) 20 m/s
(c) 40 m/s
(d) 5 m/s
Correct Answer:
20 m/s
Explanation:
Here, u= 0 We have, v² = u² + 2gh
v = √(2gh) ⇒ √(2 x 10 x20)
= 20 m/s
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Topics: Motion in Straight Line
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If the length of a closed organ pipe is 1.5 m and velocity of sound is 330 m/s,
- The original temperature of a black body is 727⁰C. The temperature at which this black
- For an ideal gas of diatomic molecules
- If in a nuclear fusion process, the masses of the fusing nuclei be m₁ and m₂
- Ratio of the radii of the nuclei with mass numbers 8 and 27 would be
Topics: Motion in Straight Line (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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