ROTATIONAL MOTION

What is the result of a × (b + c) according to vector algebra?

• a × b − a × c
• a × b × c
• a × b + a × c
• (a + b) × c

What is the direction of the torque when force is applied downward on a right-side lever?

• Out of the plane
• Into the plane (clockwise)
• To the right
• Upward

If a and b are perpendicular and both have magnitude 1, what is |a × b|?

• 0
• 1
• 2
• √2

What is the value of i × k?

• j
• −j
• i
• k

Which of the following is true about the magnitude of a × b?

• It is the perimeter of the triangle
• It is the volume of the box
• It is equal to the area of the parallelogram formed by a and b
• It is the sum of the magnitudes