A 200-N Block, on a 30 $\degree$ Incline, Is Being Held Motionless by Friction

question 1

Multiple Choice

A 200-N block, on a 30 $\degree$ incline, is being held motionless by friction. The coefficient of static friction between the block and the plane is 0.60. The force due to friction is:

• A) 104 N.
• B) 100 N.
• C) 60 N.
• D) 0 N.

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Definitions:

Myelin

A fatty substance that surrounds and insulates the axons of some neurons, enhancing the speed at which electrical impulses are conducted.

Axon

A long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body.

Neurotransmitters

Chemical substances that transmit signals across a synapse from one neuron to another in the nervous system.

Brain

The brain is the complex organ located in the skull that serves as the center of the nervous system in all vertebrate and most invertebrate animals, responsible for processing sensory information, regulating bodily functions, and enabling thought, memory, and emotion.