unit 2.4 notes check

According to the notes on equilibrium, what is the equation for the sum of forces in the y-direction (ΣF_y) when applying Newton's second law?

• ΣF_y = T - mg = ma

• ΣF_y = mg - T = ma

• ΣF_y = T + mg = ma

• ΣF_y = T - mg = 0

When the velocity (v) of the mass is constant, what is the relationship between the tension (T) and the weight (mg) according to the notes?

• T = mg

• T > mg

• T < mg

• T = 0

Equilibrium: Which of the following best represents the Free Body Diagram (FBD) for the block held by the person as shown in the diagram, given that the system is in equilibrium (a_sys = 0)?

• A diagram showing only the weight of the block acting downward.

• A diagram showing both the weight of the block acting downward and the normal force from the person's hand acting upward.

• A diagram showing only the normal force acting upward.

• A diagram showing forces acting horizontally.

Look at the diagram of the free body diagram (FBD) shown. Which of the following best describes the direction of the net force acting on the object?

• Upwards

• Leftwards

• Downwards and to the right

• There is no net force

What does FBD stand for in the context of equilibrium and Newton's laws?

• Free Body Diagram

• Force Balance Device

• Fixed Base Diagram

• Frictional Body Dynamics

Which of the following is the correct Free Body Diagram (FBD) for the object shown in the diagram?

• Option A

• Option B

• Option C

• Option D

Given the following scenario about equilibrium: Based on the net forces, in which direction is the object accelerating?

• Right

• Left

• Up

• Down

Which of the following is the correct free body diagram for this box being pulled by an applied force?

• Option A

• Option B

• Option C

• Option D

According to the information provided, as the angle θ approaches 0, what happens to the applied force in the x direction?

• It decreases

• It increases

• It remains the same

• It becomes zero

According to the information provided, as the angle θ approaches 90 degrees, what happens to the applied force in the y direction?

• It decreases

• It increases

• It remains the same

• It becomes zero