ROTATIONAL MOTION

What is the formula for torque using perpendicular component of force?

• τ = r F cosθ
• τ = r F sinθ
• τ = r F tanθ
• τ = r/F

What determines the sense of rotation due to torque?

• Magnitude of F
• Direction of r
• Direction of τ vector
• Mass of object

What is the component of momentum perpendicular to r?

• p cosθ
• p sinθ
• p tanθ
• p secθ

When is angular momentum maximum for a given r and p?

• When θ = 0°
• When θ = 180°
• When θ = 90°
• When θ = 45°

How does reversing both r and p affect angular momentum?

• It reverses
• It becomes zero
• It becomes half
• It remains unchanged