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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
Related Questions: - A thermally insulated rigid container contains an ideal gas heated by a filament
- On the horizontal surface of a truck a block of mass 1 kg is placed (µ=0.6) and truck
- A wave travelling in the +ve x-direction having displacement along y-direction as 1m
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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
- A thermally insulated rigid container contains an ideal gas heated by a filament
- On the horizontal surface of a truck a block of mass 1 kg is placed (µ=0.6) and truck
- A wave travelling in the +ve x-direction having displacement along y-direction as 1m
- For a series L-C-R circuit, the rms values of voltage across various components
- In forward biasing of the p-n junction
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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