The wheel consists of a thin hoop 2 kg and three spokes 20 cm long and weighing 0.5 kg each. To the rim a force of 5 N, directed tangentially thereto. Find the moment of inertia of the hoop; moment of inertia of the entire wheel; its angular acceleration; its kinetic energy through 2 seconds from the start of rotation.

Detailed solution with a short recording of the conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
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