A Slanted Roof Rises at 35° Above the Horizontal, and the Straight-Line

question 53

Short Answer

A slanted roof rises at 35° above the horizontal, and the straight-line distance from the top of the roof to the bottom edge is 4.5 m. The roof is covered with ice, so it offers no friction to objects sliding on it. A piece of ice at the top suddenly breaks loose and begins to slide down from rest.
(a) How long will it take for the ice to reach the bottom edge of the roof?
(b) How fast will the ice be traveling just as it reaches the bottom edge?

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Definitions:

Loud Noises

Intense auditory stimuli that can potentially cause hearing loss or stress, often considered undesirable or disruptive.

Color Vision Theories

The explanations and hypotheses that describe how the human eye perceives colors, including the trichromatic and opponent-process theories.

Trichromatic Theory

A theory of color vision that explains how humans perceive color through the response of three types of cones sensitive to different wavelengths.

Retinex Theory

A theory that suggests the human brain perceives colors in a scene in a way that is independent of lighting by comparing different spectral wavelengths.