The wheel of a sport car is suspended below the body of the car by a vertical spring with a spring constant 1.1 x 104 N/m. The mass of the wheel is 14 Kg and the diameter of the wheel is 61 cm. What is the frequency of up-and-down oscillations of the wheel? Regard the wheel as a mass on one end of a spring and regard the body of the car as a fixed support for the other end of the spring.
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f = [1/(2π)] *squareroot(k/m)
= [1/(2π)] *squareroot(1.1*10^4 / 14)
= 4.46Hz
= [1/(2π)] *squareroot(1.1*10^4 / 14)
= 4.46Hz