ROTATIONAL MOTION

How does the choice of origin affect the angular velocity vector?

• Changes magnitude
• Reverses direction
• No effect if origin is on the axis
• Makes it zero

What is the main advantage of using vector notation for angular velocity?

• It simplifies units
• It reduces computation
• It includes directional information for 3D analysis
• It makes ω zero

If the time period of rotation is T, what is the angular displacement in time T/2?

• 2π radians
• π/2 radians
• π radians
• T radians

What is the angular velocity of a body completing 10 revolutions per second?

• 10 rad/s
• 2π rad/s
• 20π rad/s
• 100 rad/s

What determines the direction of the linear velocity vector in rotational motion?

• Dot product
• Magnitude of r
• Cross product of ω and r
• Angular acceleration