ā¦ | āØ |
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 sā»Ā² is
Options
(a) šĀ / 2
(b) šĀ / 4
(c) šĀ / 6
(d) šĀ / 8
Correct Answer:
šĀ / 2
Explanation:
w = 900 x 2Ļ/60 = 30Ļ
Angular Retardation = [final velocity – initial velocity] / time
= (30Ļ – 0)/60 = Ļ/2
Therefore, the angular retardation is Ļ/2.
Related Questions: - In Young’s double slit experiment, the phase difference between the two waves
- Two waves of same amplitude superpose. The resultant intensity is Iā
- Find out the e.m.f. produced when the current changes from 0 to 1 A in 10 sec.
- The e.m.f. of a battery is 2 V and its internal resistance is 0.5 ā¦. The maximum
- The polarising angle of glass is 57ā°. A ray of light which is incident at this angle
Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In Young’s double slit experiment, the phase difference between the two waves
- Two waves of same amplitude superpose. The resultant intensity is Iā
- Find out the e.m.f. produced when the current changes from 0 to 1 A in 10 sec.
- The e.m.f. of a battery is 2 V and its internal resistance is 0.5 ā¦. The maximum
- The polarising angle of glass is 57ā°. A ray of light which is incident at this angle
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