| ⇦ | 
| ⇨ |
A particle moves a distance x in time t according to equation x = (t + 5)⁻¹. The acceleration of particle is proportional to
Options
(a) (velocity)^3/2
(b) (distance)^2
(c) (distance) ^ –2
(d) (velocity) ^ 2/3
Correct Answer:
(velocity)^3/2
Explanation:
x = 1 / t + 5
v = dx / dt = -1 / (t + 5)²
a = d²x / dt² = 2 / (t + 5)³ = 2x³
Now, 1 / (t + 5) ∞ v½
1 / (t + 5)³ ∞ v³/² ∞ a
Related Questions: - An air bubble in a glass slab with refractive index 1.5 (near normal incidence)
- Two discs of moment of inertia l₁ and I₂ and angular speeds
- When volume of a system is increased two times and temperature is decreased
- A beam of cathode rays is subjected to crossed Electric (E) and Magnetic fields (B)
- If the image formed by a convex mirror of focal length 30 cm is a quarter of the size
Topics: Motion in Straight Line
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An air bubble in a glass slab with refractive index 1.5 (near normal incidence)
- Two discs of moment of inertia l₁ and I₂ and angular speeds
- When volume of a system is increased two times and temperature is decreased
- A beam of cathode rays is subjected to crossed Electric (E) and Magnetic fields (B)
- If the image formed by a convex mirror of focal length 30 cm is a quarter of the size
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
Thankyou