# What is the radius of a car wheel if, when driving at a speed of 36 km / h

May 28, 2021 | education

| **What is the radius of a car wheel if, when driving at a speed of 36 km / h, a centripetal acceleration of 250 m / s acts on the extreme points of the wheel.**

To find the value of the wheel radius of the specified car, we will use the formula: ac = V ^ 2 / R and R = V ^ 2 / ac.

Values of variables: V – speed of the specified vehicle (V = 36 km / h = 10 m / s); ac – centripetal acceleration acting on the extreme points of the wheel (ac = 250 m / s2).

Calculation: R = V ^ 2 / ac = 10 ^ 2/250 = 0.4 m.

Answer: The wheel radius of the specified vehicle is 0.4 m.

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