Physics: Net External Force and Right Triangle Problems

What is the angle of the incline in the problem discussed?

• 45 degrees

• 35 degrees

• 50 degrees

• 30 degrees

Which trigonometric function is used to find the Y component of the force?

• Secant

• Cosine

• Sine

• Tangent

What is the approximate value of the Y component of the force?

• 35

• 22

• 18.02

• 12.6

What is the net external force acting on the book?

• 1.6 N

• 12.6 N

• 18 N

• 22 N

In which direction will the book slide?

• Down the incline

• Perpendicular to the incline

• It will not slide

• Up the incline

What theorem is used in the alternative method to solve the problem?

• Pythagorean theorem

• Sine rule

• Cosine rule

• Tangent rule

What is the value of the hypotenuse in the alternative method?

• 35

• 22

• 18

• 12.6

Why is the alternative method considered a shortcut?

• It gives an approximate answer

• It doesn't require trigonometry

• It only works when vectors are pre-labeled

• It uses fewer calculations

What should you be cautious about when using the shortcut method?

• It might not always be accurate

• It requires pre-labeled vectors

• It is more time-consuming

• It doesn't use the Pythagorean theorem

What is the main takeaway from the conclusion of the tutorial?

• Focus only on the Pythagorean theorem

• Understand the full process before using shortcuts

• Always use the shortcut method

• Avoid using trigonometry