A 20-G Bead Is Attached to a Light 120 Cm-Long

question 55

Multiple Choice

A 20-g bead is attached to a light 120 cm-long string as shown in the figure.If the angle α is measured to be 18°,what is the speed of the mass?

• A)0.55 m/s
• B)2.0 m/s
• C)3.8 m/s
• D)1.3 m/s
• E)1.1 m/s

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Definitions:

Asthenosphere

A region of the Earth's mantle lying below the lithosphere, characterized by relatively low viscosity and mechanical weakness.

Lithosphere

The hard external layer of Earth, made up of the crust and the top section of the mantle.

Driving Forces

Factors or energies that lead to changes in a physical system or environment, often initiating or influencing processes.

Resisting Forces

Forces that oppose motion or movement, including friction, air resistance, and tension, which work against the direction of motion.