ROTATIONAL MOTION

What happens to a × b if the coordinate system is reflected?

• It reverses
• It becomes zero
• It remains unchanged
• It doubles

What is the vector product of displacement and force?

• Work
• Power
• Torque
• Energy

If a and b are at 60°, what is sinθ for the cross product?

• 0.5
• √3/2
• 1
• 0

What is the direction of the screw when turned from b to a?

• Direction of a × b
• Direction of b × a
• Opposite to b
• Perpendicular to a

If a × b = 0, which of the following cannot be true?

• a is zero
• b is zero
• a and b are parallel
• a and b are perpendicular