| ⇦ | 
| ⇨ |
A particle starts its motion from rest under the action of a constant force. If the distance covered in first 10 seconds is S₁ and that covered in the first 20 seconds is S₂, then:
Options
(a) S₂ = 3S₁
(b) S₂ = 4S₁
(c) S₂ = S₁
(d) S₂ = 2S₁
Correct Answer:
S₂ = 4S₁
Explanation:
u= 0, t₁= 10 s, t₂= 20 s Using the relation, S = ut + 1/2 at²
Acceleration being the same in two cases,
S₁ = 1/2 a x t₁² , S₂ = 1/2 a x t₂²
S₁ / S₂ = ( t₁ / t₂ )² = (10 / 20)² = 1/4
S₂ = 4S₁
Related Questions: - A bullet emerges from a barrel of length 1.2 m with a speed of 640 ms⁻¹.
- The molecular weight of a gas is 44. The volume occupied by 2.2 g of this gas
- The string of a pendulum is horizontal.The mass of bob attached to it is m
- The velocity of sound is V, in air. If the density of air is increased to four times
- Calculate the focal length of a reading glass of a person, if the distance
Topics: Motion in Straight Line
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A bullet emerges from a barrel of length 1.2 m with a speed of 640 ms⁻¹.
- The molecular weight of a gas is 44. The volume occupied by 2.2 g of this gas
- The string of a pendulum is horizontal.The mass of bob attached to it is m
- The velocity of sound is V, in air. If the density of air is increased to four times
- Calculate the focal length of a reading glass of a person, if the distance
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