| ⇦ | 
| ⇨ |
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: - The magnetic field at a point on the axis of a long solenoid having 5 turns per cm
- Young’s modulus of perfectly rigid body material is
- In a LCR series circuit, the potential difference between the terminals of the inductor
- A cricketer catches a ball of mass 150 g in 0.1 sec moving with speed 20 m/s
- A body of mass m is thrown upwards at an angle θ with the horizontal with velocity
Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The magnetic field at a point on the axis of a long solenoid having 5 turns per cm
- Young’s modulus of perfectly rigid body material is
- In a LCR series circuit, the potential difference between the terminals of the inductor
- A cricketer catches a ball of mass 150 g in 0.1 sec moving with speed 20 m/s
- A body of mass m is thrown upwards at an angle θ with the horizontal with velocity
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