| ⇦ | 
| ⇨ |
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: - The ratio of radii of planets A and B is K₁ and ratio of accelerations
- A particle moving in a straight line covers half the distance with speed of 3 m/s
- According to photon theory of light which of the following physical quantities,
- To draw the maximum current from a combination of cells, how should be the cells
- A spring of spring constant 5 x 10³ N/m is stretched initially by 5 cm
Topics: Motion in Straight Line
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The ratio of radii of planets A and B is K₁ and ratio of accelerations
- A particle moving in a straight line covers half the distance with speed of 3 m/s
- According to photon theory of light which of the following physical quantities,
- To draw the maximum current from a combination of cells, how should be the cells
- A spring of spring constant 5 x 10³ N/m is stretched initially by 5 cm
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