⇦ | ⇨ |
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: - Consider 3rd orbit of He⁺(helium), using non-relativistic approach, the speed
- If two charges +4e and +e are at a distance x apart, then at what distance charge q
- A particle moving along a straight line OX.At a time (in second ) the distance
- The half-life of a radioactive substance is 30 min. The time (in minutes) taken
- In intrinsic semiconductor at room temperature number of electrons and holes are
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
- Consider 3rd orbit of He⁺(helium), using non-relativistic approach, the speed
- If two charges +4e and +e are at a distance x apart, then at what distance charge q
- A particle moving along a straight line OX.At a time (in second ) the distance
- The half-life of a radioactive substance is 30 min. The time (in minutes) taken
- In intrinsic semiconductor at room temperature number of electrons and holes are
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