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When a ceiling fan is switched off its angular velocity reduces to 50% while it makes 36 rotations. How many more rotation will it make before coming to rest?(assume uniform angular retardation)
Options
(a) 18
(b) 12
(c) 36
(d) 48
Correct Answer:
12
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Shear modulus is zero for
- A step down transformer is used on a 1000 V line to deliver 20 A at 120 V
- A solid cylinder of mass 50kg and radius 0.5 m is, free to rotate about the horizontal axis
- Let A = i Acosθ +j B sinθ be any vector.Another vector B which is normal to A is
- The friction of the air causes a vertical retardation equal to 10%
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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