| ⇦ | 
| ⇨ |
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: - Zenor breakdown in a semiconductor diode occurs when
- In the Davisson and Germer experiment, the velocity of electrons emitted from the
- Two waves are represented by the equations y₁ = a sin (?t + kx + 0.57) m
- An electric dipole of dipole moment p is aligned parallel to a uniform electric field E
- Two lines of force due to a bar magnet
Topics: Motion in Straight Line
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Zenor breakdown in a semiconductor diode occurs when
- In the Davisson and Germer experiment, the velocity of electrons emitted from the
- Two waves are represented by the equations y₁ = a sin (?t + kx + 0.57) m
- An electric dipole of dipole moment p is aligned parallel to a uniform electric field E
- Two lines of force due to a bar magnet
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