Question
Download Solution PDFThe peripheral speed of a car wheel of diameter 300 mm rotating at the speed of 60 RPM, is
a) 30 π m/s
b) 0.3π m/s
c) 0.6 π m/s
d) 60 π m/s
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is 0.3π m/s.Key Points
Given in the question:
- Diameter of car Wheel = 300mm
- Rotating Speed = 60 RPM
On changing the unit of questions
- Radius = Diameter/2
- mm to m = mm/1000
Now:
- Radis= 300/2 = 150mm
- 150mm/1000 = 0.15m
According to Question,
- 60 Round per minute = 1 Round per Second
- Peripheral Speed = Distant/Time (Distant = 2πr,)
- 2πr/Time = 2xπxr/1 = 2xπx0.15/1 = 0.3π m/s
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