Chapter 4, Problem 31P

Determine the moment of the force F=9i+18jlb about point O by the following methods: (a) vector method using rF; (b) scalar method using rectangular components of F; and (c) scalar method using components of F that are parallel and perpendicular to the line OA.

Solve it correctly please.

3) The man in the figure pulls the rope tied at point A.It pulls with a force of F=150 N. According to thisthe force F exerted by the man as a cartesian vector.Write it down and determine its moment about point O.

Determine the moment of the force F about point P. Express the result as a Cartesian vector.

Determine the moment of force F about an axis through A and C. Express the result as a Cartesian vector

Determine the moment of force F about the door hinge at B. Express the result as a Cartesian vector.

3- If the two forces F, (100i - 120j + 75k) Ib and F, = {-200i + 250j + 100k) lb act at A, determine the resultant moment produced by these forces about point O. Express the result as a Cartesian vector.

Determine the moment of the 80-lb force about the Oa axis. Express the result as a Cartesian vector. C 5 ft 30° 4 ft B 30° 45° 80 lb 6 ft 60° 120°

Determine the moment of force F about point O. Express the result as a Cartesian vector. Assume F= 170 lb. what is Mo ib*ft?