A thin light wire is wrapped around the rim of a wheel as shown below. The wheel

Question

A thin light wire is wrapped around the rim of a wheel as shown below. The wheel rotates without friction about a stationary horizontal axis that passes through the center of the wheel. The wheel is a uniform disk with radius R = 0.280 m. An object of mass m = 4.20 kg is suspended from the free end of the wire. The system is released from rest and the suspended object descends with constant acceleration. If the suspended object moves downward a distance of 3.0 m in 2.0 s, what is the mass of the disk (wheel)?

Explanation / Answer

A thin light wire is wrapped around the rim of a wheel as shown below. The wheel

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