A Box of Mass M Is Placed on an Incline

question 51

Multiple Choice

A box of mass m is placed on an incline with angle of inclination θ.The box does not slide.The magnitude of the frictional force in this case is:

• A)μ_s mg sin θ.
• B)mg cos θ.
• C)mg sin θ.
• D)not given.

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Definitions:

Epinephrine

A hormone and a neurotransmitter also known as adrenaline, which is released in response to stress and works by increasing heart rate, contracting blood vessels, and dilating air passages.

Bloodstream

The flowing body fluid that carries oxygen, nutrients, and waste products to and away from cells within an organism, primarily consisting of plasma, red and white blood cells, and platelets.

Accelerate Heartbeat

The increase in the speed of the heart rate.

Endocrine Gland

A gland that secretes hormones directly into the bloodstream to regulate the body's growth, metabolism, and development.