ROTATIONAL MOTION

What is the result of a × b under reflection?

• −(a × b)
• 0
• a × b
• b × a

What happens to the direction of the cross product when the order of vectors is reversed?

• It remains the same
• It becomes zero
• It rotates by 90°
• It reverses direction

Is the vector product commutative?

• Yes, a × b = b × a
• No, because a × b = −(b × a)
• Only in 2D space
• Yes, for perpendicular vectors

What is another name for vector product due to the symbol used?

• Dot product
• Scalar product
• Normal product
• Cross product

How is the direction of the vector product determined using the right hand?

• Point fingers in direction of first vector
• Curl fingers from first to second vector, thumb gives direction
• Point thumb opposite to second vector
• Keep palm facing the resultant vector