This video tutorial covers Newton's second law and forces at angles, focusing on analyzing situations with angled forces causing horizontal acceleration. It explains vector resolution, net force analysis, and provides an example problem. The video also discusses normal force and how to handle forces directed downward below the horizontal. An action plan with resources is provided for further learning.

What is the main topic of the video?

• Newton's Second Law and forces at angles

• Newton's Third Law

• Gravitational Forces

• Newton's First Law

Tags

NGSS.HS-PS2-1

What are the two components of a vector at an angle?

• Horizontal and Vertical

• Vertical and Diagonal

• Horizontal and Diagonal

• Diagonal and Perpendicular

Which trigonometric function is used to find the horizontal component of a vector?

• Secant

• Tangent

• Sine

• Cosine

What is the equation for the vertical component of a vector?

• a * sin(theta)

• a * cos(theta)

• a / cos(theta)

• a * tan(theta)

What is the net force in the horizontal direction if the forces are 60 N to the right and 10 N to the left?

• 70 N to the right

• 50 N to the right

• 60 N to the left

• 50 N to the left

Tags

NGSS.HS-PS2-1

How do you simplify a force diagram with an angled force?

• By ignoring the angle

• By using vector resolution to find components

• By adding more forces

• By changing the angle

In the example problem, what is the horizontal component of a 150 N force applied at 30 degrees?

• 75 N

• 130 N

• 150 N

• 60 N

Tags

NGSS.HS-PS2-1

What is the net force in the example problem if the friction force is 60 N?

• 70 N to the right

• 90 N to the left

• 130 N to the right

• 60 N to the left

Tags

NGSS.HS-PS2-1

What is the normal force when there are three vertical forces acting on an object?

• Equal to the friction force

• Equal to the applied force

• Equal to the sum of the gravitational force and the vertical component of the applied force

• Equal to the gravitational force

Tags

NGSS.HS-PS2-1

What must the sum of the vertical forces be when an object accelerates horizontally?

• Greater than zero

• Less than zero

• Equal to zero

• Equal to the horizontal forces

Tags

NGSS.HS-PS2-1