A Wheel Has a Radius of 0

question 37

Multiple Choice

A wheel has a radius of 0.40 m and is mounted on frictionless bearings.A block is suspended from a rope that is wound on the wheel and attached to it (see figure) .The wheel is released from rest and the block descends 1.5 m in 2.00 s without any slipping of the rope.The tension in the rope during the descent of the block is 20 N.What is the moment of inertia of the wheel?

• A)3.5 kg · m²
• B)3.7 kg · m²
• C)3.9 kg · m²
• D)4.1 kg · m²
• E)4.3 kg · m²

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Definitions:

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Eponychium

The thin layer of skin at the base of the fingernails and toenails.

Hyponychium

The region of thickened skin under the free edge of the nail plate on a finger or toe, providing a protective barrier against pathogens.

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The skin and soft tissue that encircles the nail plate, providing protection to the nail matrix area.