| ⇦ | 
| ⇨ |
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: - The device can act as a complete electronic circuit is
- A bucket full of water is revolved in a vertical circle of 2m
- Two concentric coils each of radius equal to 2π cm are placed at right angles
- A 200 W sodium street lamp emits yellow light of wavelength 0.6 µm
- Two coaxial solenoids are made by winding thin insulated wire over a pipe
Topics: Motion in Straight Line
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The device can act as a complete electronic circuit is
- A bucket full of water is revolved in a vertical circle of 2m
- Two concentric coils each of radius equal to 2π cm are placed at right angles
- A 200 W sodium street lamp emits yellow light of wavelength 0.6 µm
- Two coaxial solenoids are made by winding thin insulated wire over a pipe
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