Acoin completes 18 spins in 12 seconds. the centripetal acceleration of the edge of the coin is 2.2 m/s2. the radius of the coin is 0.0250.0372.18.0

Radius of the coin, r = 0.025 m

Explanation:

It is given that,

Centripetal acceleration, a = 2.2 m/s²

A coin completes 18 spins in 12 seconds. So, its frequency will be :

Centripetal acceleration is equal to :

Since, ω = 2πf

r = 0.025 m

So, the radius of the coin is 0.025 meters. Hence, this is the required solution.

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