Understanding Work in Vertical Motion

What is the main focus of the video on vertical motion?

• Projectile motion

• Circular motion

• Negative and positive work

• Horizontal motion

When raising an object at constant velocity, what is the angle between the applied force and displacement?

• 90 degrees

• 45 degrees

• 180 degrees

• 0 degrees

What is the cosine of the angle between the applied force and displacement when raising an object?

• -1

• 0

• 0.5

• 1

How much work does the applied force do when raising an object 5 meters with a force of 45 Newtons?

• 45 Joules

• 0 Joules

• 125 Joules

• 225 Joules

What is the angle between the gravitational force and displacement when raising an object?

• 0 degrees

• 90 degrees

• 180 degrees

• 45 degrees

What is the work done by gravitational force when raising an object 5 meters with a force of 45 Newtons?

• 225 Joules

• 125 Joules

• -125 Joules

• -225 Joules

When lowering an object, what is the angle between the applied force and displacement?

• 0 degrees

• 90 degrees

• 180 degrees

• 45 degrees

What is the work done by the gravitational force when lowering an object?

• -125 Joules

• 125 Joules

• 0 Joules

• 225 Joules

What happens to the energy of the system when you lower an object?

• Energy is doubled

• Energy is added to the system

• Energy is removed from the system

• Energy remains constant

What is the key difference between positive and negative work in vertical motion?

• The direction of the force

• The magnitude of the force

• The speed of the object

• The angle between force and displacement