When analyzing forces on an incline, why might we use the cosine component instead of the sine component?

Forces on an Incline

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Physics, Mathematics, Science
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9th - 12th Grade
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Hard

Patricia Brown
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To measure the velocity
To find the gravitational force
To determine the frictional force
To calculate the normal force
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of a Freebody diagram?
To calculate the mass of an object
To visualize forces acting on an object
To determine the speed of an object
To measure the distance traveled
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which force acts straight down on a box on an incline?
Gravitational force
Applied force
Frictional force
Normal force
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it beneficial to have forces pointing along orthogonal axes?
To enhance gravitational pull
To simplify calculations
To increase the speed of the object
To reduce friction
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the sine component of gravitational force as the angle of the incline approaches zero?
It remains constant
It decreases
It increases
It becomes negative
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which component of gravitational force is responsible for the box sliding down the incline?
mg sine theta
mg cosine theta
Normal force
Frictional force
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the equation for the frictional force on an incline?
F = ma
F = mg
F = μN
F = mv^2/r
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