The velocity of a particle at an instant is 10 ms⁻¹.After 3 s its velocity will become

The Velocity Of A Particle At An Instant Is 10 Physics Question

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:

  1. A train of mass 2x 10⁵ kg has a constant speed of 20 m/s up a hill inclined
  2. λ₁ and λ₂ are used to illuminate the slits. β₁ and β₂ are the corresponding fringe
  3. A radioactive element forms its own isotope after 3 consecutive disintegrations.
  4. If the cold junction of a thermo-couple is kept at 0⁰C and the hot junction is kept
  5. The pressure at the bottom of a tank containing a liquid does not depend on

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.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*