A Block of Mass M Sits at Rest on a Rough

question 27

Multiple Choice

A block of mass m sits at rest on a rough inclined ramp that makes an angle θ with the horizontal.What must be true about force of static friction f on the block?

• A)f > mg
• B)f > mg cos θ
• C)f > mg sin θ
• D)f = mg cos θ
• E)f = mg sin θ

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Definitions:

Otolith Organs

Structures in the vestibular system that detect linear accelerations of the head and contribute to the sensation of gravity and motion.

Touch Receptors

Sensory nerve endings in the skin that respond to tactile stimuli, allowing the sensation of touch.

Cutaneous Sense

The sensory system related to the skin, involving perception of touch, pressure, temperature, and pain.

Olfactory

Pertains to the sense of smell.