The cyclist moved evenly along the highway at a speed of 24 km / h. Find the wheel speed if R = 26 cm.

univerkov | August 3, 2021 | education

To calculate the required value of the bicycle wheel rotation frequency, we apply the formula: Vв = 2 * Π * R * ν, from where we express: ν = Vв / (2 * Π * R).

Data: Vв – bike speed (Vв = 24 km / h = 6.67 m / s); R is the radius of the wheel (R = 26 cm = 0.26 m).

Let’s make a calculation: ν = Vw / (2 * Π * R) = 6.67 / (2 * 3.14 * 0.26) = 4.08 rev / s.

Answer: The wheel speed, according to the calculation, is 4.08 r / s.

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