Diameter D = 25 inch
Radius r= D/2 = 25/2 = 12.5 inch
"1 ft = 12 inch and 1 mile = 5280 feet". R = 12.5×(1/12)×(1/5280) mile
Revolution n =430 rev./minute , n=430 × 60 rev./hour
Angular speed=2 × pi × n =2 × pi × n radian per hour =2 × pi × 430 × 60
a) Road speed = r × angular speed
Road speed = 12.5 × (1/12) × (1/5280) × (2 × pi × 430 × 60)
Road speed = 31.98 miles per hour
What is a revolution?
A revolution is a radical transfer in the founded order, often the founded government and social institutions.
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