Vector Quiz

Which statement describes a vector?

• It has magnitude but no direction
• It has direction but no magnitude
• It has both direction and magnitude
• It has constant magnitude but no
   direction

What are the components of a vector A with a magnitude of 5 lb of force with a direction 30 degrees CCW of the positive X axis? round to the nearest 0.0 lb and keep your answer for a future problem

• Ax = 4.3 lb, Ay = 2.5 lb

• Ax = 4.3 lb, Ay = -2.5 lb

• Ax = 2.5 lb, Ay = 4.3 lb

• Ax = -2.5 lb, Ay = 4.3 lb

What are the components of a vector A with a magnitude of 8 lb of force with a direction 60 degrees CW of the positive X axis? round to the nearest 0.0 lb and make sure you have this for a future problem.

• Ax = 4.0 lb, Ay = -6.9 lb

• Ax = 4.0 lb, Ay = 6.9 lb

• Ax = 6.9 lb, Ay = 4.0 lb

• Ax = -6.9 lb, Ay = 4.0 lb

Given the 2 previous vectors, what is the Resultant X value?

• 8.3 lb

• -4.4 lb

• -8.3 lb

• 4.4 lb

Given the 2 previous vectors, what is the Resultant Y value?

• 8.3 lb

• -4.4 lb

• -8.3 lb

• 4.4 lb