Question: The angular velocity of a wheel is 70 𝑟𝑎𝑑/𝑠𝑒𝑐. If the radius of the wheel is 0.5 𝑚, then linear velocity of the wheel is
(A) 70 𝑚/𝑠
(B) 35 𝑚/𝑠
(C) 30 𝑚/𝑠
(D) 20 𝑚/s
Answer: option (B)
Solution:
The angular velocity of a wheel is 70 𝑟𝑎𝑑/𝑠𝑒𝑐. If the radius of the wheel is 0.5 𝑚, then linear velocity of the wheel is
with
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