⇦ | ⇨ |
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 car accelerates from rest at constant rate for first 10s and covers a distance x.
- A current I flows along the length of an infinitely long, straight, thin walled pipe.
- The ultimate individual unit of magnetism in any magnet is called
- The resistance of a bulb filament is 100 Ω at a temperature of 100⁰C.
- The moderator in a reactor
Topics: Motion in Straight Line
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A car accelerates from rest at constant rate for first 10s and covers a distance x.
- A current I flows along the length of an infinitely long, straight, thin walled pipe.
- The ultimate individual unit of magnetism in any magnet is called
- The resistance of a bulb filament is 100 Ω at a temperature of 100⁰C.
- The moderator in a reactor
Topics: Motion in Straight Line (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply