AP Physics 1 Forces: 6 ?s FBDs & inclines

A 80 kg skydiver is free falling at a constant velocity of 19 m/s. What is the net (total) force acting on her?

• 1,520 N
• 0 N
• 4.21 N
• Not enough information to answer

Tags

NGSS.HS-PS2-1

A car travels up a hill at constant speed. Which of the following diagrams best represents the forces acting on the car at this instant?

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Tags

NGSS.HS-PS2-1

Three forces of equal magnitude act on the box shown. One force is upward, one downward, and one rightward. Which of the following statements must be true based on this information? Select two answers.

• The box must have a rightward component of velocity.

• The box has no vertical component of velocity.

• The acceleration of the box is directed to the right.

• The velocity of the box is changing with time.

Tags

NGSS.HS-PS2-1

"If we apply a ___________ to an object, its __________________ will change and it will  ______________."

• force, accelerate, gravity
• accelerate, inertia, gravity
• force, velocity, accelerate
• velocity, gravity, inertia

Tags

NGSS.HS-PS2-1

As the angle of the incline increases, what happens to the normal force?

• The normal force increases

• The normal force decreases

• The normal force is not affected by the incline

• The normal force is only dependent on the force due to gravity

Tags

NGSS.HS-PS2-1

If there is no friction, then the acceleration would be equal to

• mg

• sin(θ)mg

• g

• sin(θ)g

Tags

NGSS.HS-PS2-1