ROTATIONAL MOTION

Which of the following is a correct elementary cross product as per the text?

• ĵ × k̂ = î
• ĵ × k̂ = -î
• ĵ × k̂ = ĵ
• ĵ × k̂ = k̂

What is the magnitude of the cross product of two unit vectors at 90 degrees to each other?

• 0
• 0.5
• 1
• 2

What rule determines the direction of the vector resulting from î × ĵ?

• Left-hand rule
• Palm rule
• Right-hand screw rule
• Fleming's left-hand rule

How is the linear velocity vector oriented relative to the circular path of a rotating particle?

• Radial
• Axial
• Tangential
• Perpendicular to the plane

In rotational motion about a fixed axis, where is the center of the circular path of a particle located?

• At the origin
• At infinity
• On the axis of rotation
• At the center of mass