A String Is Wrapped Around a Pulley with a Radius

question 8

Multiple Choice

A string is wrapped around a pulley with a radius of 2.0 cm and no appreciable friction in its axle.The pulley is initially not turning.A constant force of 50 N is applied to the string,which does not slip,causing the pulley to rotate and the string to unwind.If the string unwinds 1.2 m in 4.9 s,what is the moment of inertia of the pulley?

• A)0.17 kg ∙ m²
• B)17 kg ∙ m²
• C)14 kg ∙ m²
• D)0.20 kg ∙ m²
• E)0.017 kg ∙ m²

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Definitions:

Homo Floresiensis

A species of small, extinct hominids, known as "hobbits," discovered on the Indonesian island of Flores, notable for their small size and ancient lineage.

Fossil Record

The collection of fossils, which serves as historical documentation of past life on Earth.

Stone Tools

Prehistoric tools made from stone by early humans, used in hunting, cutting, and as weapons.

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Warm-blooded vertebrates characterized by the presence of mammary glands which females use to nurse their young, fur or hair, and three middle ear bones.