| ⇦ | 
| ⇨ |
The velocity of a particle at an instant is 10 ms⁻¹.After 3 s its velocity will become 16 ms⁻¹.The velocity at 2 s before the given instant, will be
Options
(a) 6 ms⁻¹
(b) 4 ms⁻¹
(c) 2 ms⁻¹
(d) 1 ms⁻¹
Correct Answer:
6 ms⁻¹
Explanation:
Given: v=16 ms⁻¹;u=10 ms⁻¹;t= 3s; a=?
v=u+at
16=10+a(3)
3a=16-10⇒3a=6⇒a=2 ms⁻²
before 2 s,⇒10=u+2×2⇒u=6 ms⁻¹.
Related Questions: - A satellite A of mass m is at a distance r from the centre of earth. Another satellite
- The focal lengths of a converging lens are fᵥ and fᵣ for violet and red lights
- ₉₂U²³⁵ undergoes successive disintegrations with the end product of ₈₂P²⁰³
- When there is no heat change from surroundings in a system, then the process
- 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 satellite A of mass m is at a distance r from the centre of earth. Another satellite
- The focal lengths of a converging lens are fᵥ and fᵣ for violet and red lights
- ₉₂U²³⁵ undergoes successive disintegrations with the end product of ₈₂P²⁰³
- When there is no heat change from surroundings in a system, then the process
- 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