READING QUIZ A)to move a body towards the point or axis. B)to rotate a body about the point or axis. C)to deform a body. D)to lift a body. The moment of a force about a point or an axis provides a measure of the force’s tendency ___

READING QUIZ D)A 2 + B 2 – 2AB cos  Select the magnitude of the cross product of two vectors A and B that have an inside angle  between them. A)AB sin  B) A sin  B C)AB cos 

READING QUIZ Find the moment of force F with respect to point C. A BC 5” 3” 4” F = 10 lb A)0 D)50 in  lb C) 40 in  lb B)30 in  lb

CONCEPT QUIZ The moment of vector of force F with respect to point A can be written as Z X F = – 100 k lb 3’ 2’ A Y A) {200 i j } ft-lb D) { 200 i – 300 j }ft-lb C) { – 200 i – 300 j }ft-lb B) { – 200 i j }ft-lb

CONCEPT QUIZ The moment vector of force F with respect to point A lies in the Z X F = – 100 k lb 3’ 2’ A Y A) x-z plane. D) Cannot be determined. C) y-z plane. B) x-y plane.

ATTENTION QUIZ Select the true statement. D) k  i = – j A) i  i = 1 B) i  j = - k C) k  j = – i

ATTENTION QUIZ Using the figure, find the moment of force F with respect to point A. A BC 5” 3” 4” F = 10 lb A)0 D)50 in  lb C)40 in  lb B)30 in  lb