A wheel of radius \(0.20 \mathrm{~m}\) is mounted on a frictionless horizontal axis. The rotatio....

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A wheel of radius \(0.20 \mathrm{~m}\) is mounted on a frictionless horizontal axis. The rotational inertia of the wheel about the axis is \(0.07 \mathrm{~kg} \mathrm{~m}^{2}\). A massless cord wrapped around the wheel is attached to a \(2.0 \mathrm{~kg}\) block that slides on a horizontal frictionless surface. If a horizontal force of magnitude \(P=3.0 \mathrm{~N}\) is applied to the block as shown in figure, what is the magnitude of the angular acceleration (in \(\mathrm{rad} / \mathrm{s}^{2}\) ) of the wheel? Assume the string does not slip on the wheel.
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