| ⇦ | 
| ⇨ |
A particle covers half of its total distance with speed v1 and the rest half distance with speed v2. Its average speed during the complete journey is
Options
(a) (v1v2)/(v1+v2)
(b) (2v1v2)/(v1+v2)
(c) (2v1²v2²)/(v1²+v2²)
(d) (v1+v2)/2
Correct Answer:
(2v1v2)/(v1+v2)
Explanation:
Let the tot. distance covered by the particles be 2s. Then
vₐᵥ = 2 s / (s/ v₁ + s/ v₂) = 2 v₁v₂ / v₁ + v₂
Related Questions: - A thin prism of angle 15⁰ made of glass of refractive index µ₁ = 1.5 is combined
- A train is moving along a straight path with uniform acceleration
- The charge flowing through a resistance R varies with time t as Q=at-bt²,
- Three capacitors each of capacity 4 μF are to be connected in such a way that the effective
- The unit of surface tension is
Topics: Motion in Straight Line
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A thin prism of angle 15⁰ made of glass of refractive index µ₁ = 1.5 is combined
- A train is moving along a straight path with uniform acceleration
- The charge flowing through a resistance R varies with time t as Q=at-bt²,
- Three capacitors each of capacity 4 μF are to be connected in such a way that the effective
- The unit of surface tension is
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