A 020-Kg Block Rests on a Frictionless,level Surface and Is Attached

question 40

Multiple Choice

A 0.20-kg block rests on a frictionless,level surface and is attached to a horizontally aligned spring with a spring constant of 80 N/m.The block is initially displaced 4.0 cm from the equilibrium point and then released to set up a simple harmonic motion.What is the speed of the block when it passes through the equilibrium point?

• A) 2.1 m/s
• B) 1.6 m/s
• C) 0.80 m/s
• D) 0.57 m/s

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Definitions:

Phosphorus

A chemical element with the symbol P and atomic number 15, essential for life, involved in various biological processes, including energy transfer and the formation of bones and teeth.

Trace Element

An element required by an organism in very small amounts.

Iron

A metallic element essential for human life; involved in oxygen transport within the bloodstream.

Obesity

Excess accumulation of body fat; a person is considered obese if the body mass index (BMI) is 30 or higher.