Answer:
angular speed = 10,266.424 radians per minute
Step-by-step explanation:
Angular speed w= Velocity (v)/ radius(r)
w= 221760/0.6= 369,600/5280 feet per hour= 70 miles per hour
Circumference of the wheel = 2πr
2π(0.6)= 3.77 feet
Converting feet to miles
3.77/5280= 7.3 e-⁴ miles
No of revolutions= 369600/ 3.77= 98,037. 14 revolutions per hour
Converting it to mins= 98,037.14/60= 1634 rev per minute
2π rad= 1 rev
1634*2π= 10,266.424 radians per minute
