| ⇦ | 
| ⇨ |
A particle has initial velocity (2i⃗+3j⃗) and acceleration (0.3i⃗+0.2j⃗). The magnitude of velocity after 10 seconds will be:
Options
(a) 9 √2 units
(b) 5 √2 units
(c) 5 units
(d) 9 units
Correct Answer:
5 √2 units
Explanation:
v⃗ = u⃗ + a⃗t
v = (2i + 3j) + (0.3i + 0.2j) x 10 = 5i +5j
| v⃗ | = √ (5² + 5²)
| v⃗ | = 5 √2
Related Questions: - An electron is moving in a circular path under the influence of a transverse magnetic
- If the kinetic energy of the particle is increased to 16 times its previous value
- A bimetallic strip consists of metals X and Y. It is mounted rigidly at the base as shown
- An unpolarised beam of intensity I₀ falls on a polaroid. The intensity
- The earth is assumed to be a sphere of radius R. A platform is arranged at a height R
Difficulty Level: Easy
(1008)
Topics: Motion in Straight Line
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An electron is moving in a circular path under the influence of a transverse magnetic
- If the kinetic energy of the particle is increased to 16 times its previous value
- A bimetallic strip consists of metals X and Y. It is mounted rigidly at the base as shown
- An unpolarised beam of intensity I₀ falls on a polaroid. The intensity
- The earth is assumed to be a sphere of radius R. A platform is arranged at a height R
Difficulty Level: Easy (1008)
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