Pressure & Gravity: Help for Vietnam Student

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The discussion focuses on understanding the relationship between pressure on an inclined plane and gravitational force. It explains that gravity acts directly downward, while the pressure from an inclined surface has both vertical and horizontal components due to support and friction. The sine and cosine functions are essential for calculating these components based on the angle of inclination. For those unfamiliar with these trigonometric functions, resources like introductory trigonometry materials are recommended for further learning. A solid grasp of these concepts is crucial for solving related physics problems.
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My teacher say: Comparisons between the pressure of an object on the inclined plane and the gravity of the object
But idk what is sin and cos means
I need help
THANKS
from: vietnam
 
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The force of gravity on an object will be directly down. The force applied to an object by an inclined place will be from two sources: The direct support of the object will be perpendicular to the inclined surface (with vertical and horizontal components) and from friction along the surface (also with vertical and horizontal components).

The sine and cosine of the angle of the inclination of the plane are used to compute those components.
 
DirtMonster said:
But idk what is sin and cos means
##\sin## and ##\cos## are the basic trignometric functions sine and cosine. Although there's no substitute for a proper high-school level textbook (this subject is usually covered after a second year of algebra and a year of geometry) googling for "intro to trig" will find enough to get you started.
 
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