772PhysicsMedium
When a wheel 1 m in diameter makes 30 rev min the linear speed of the point on its rim in ms-1 is_______________?
A20π
B2π
Cπ
Dπ/2
Correct answer
D. π/2
Explanation
π/2 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.