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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
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- To demonstrate the phenomenon of interference, we require two sources which emit
- Dimensional formula of magnetic field in terms of mass M, length L
- The velocity of image when object and mirror both are moving towards each other
- Which of the following atoms has the lowest ionisation potential?
- A bar magnet is hung by a thin cotton thread in a uniform horizontal magnetic field
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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