| ⇦ | 
| ⇨ |
A wheel is rotating at 900 rpm about its axis.When the power is cut-off it comes to rest in 1 min.The angular retardation in rad s⁻² is
Options
(a) 𝜋 / 2
(b) 𝜋 / 4
(c) 𝜋 / 6
(d) 𝜋 / 8
Correct Answer:
𝜋 / 2
Explanation:
w = 900 x 2π/60 = 30π
Angular Retardation = [final velocity – initial velocity] / time
= (30π – 0)/60 = π/2
Therefore, the angular retardation is π/2.
Related Questions: - A potentiometer wire of length L and a resistance r are connected in series with
- Rate of photoelectric emission is proportional to
- Consider 3rd orbit of He⁺(helium), using non-relativistic approach, the speed
- The mass of a lift is 2000kg. When the tension in the supporting cable is 28000N, then its acceleration is
- Two beams of light having intensities I and 4I interfere to produce a fringe pattern
Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A potentiometer wire of length L and a resistance r are connected in series with
- Rate of photoelectric emission is proportional to
- Consider 3rd orbit of He⁺(helium), using non-relativistic approach, the speed
- The mass of a lift is 2000kg. When the tension in the supporting cable is 28000N, then its acceleration is
- Two beams of light having intensities I and 4I interfere to produce a fringe pattern
Topics: Motion in Plane (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