Force System Resultants - General Questions (5)

Determine the moment of force F₃ about point A on the beam.

Replace the force and couple system by an equivalent single force and couple acting at point P.

Replace the loading by an equivalent force and couple moment acting at point O.

The boys A, B and C stand near the edges of a raft as shown. Determine the location (x, y) of boy D so that all four boys create a single resultant force acting through the raft's center O. Provided the raft itself is symmetric, this would keep the raft afloat in a horizontal plane. the mass of each boy is indicated in the diagram.

Determine the magnitude and direction of the moment of the force of the movement if the force at A about point P.

The bricks on top of the beam and the supports at the bottom create the distributed loading shown in the second figure. Determine the required intensity w and dimension d of the right support so that the resultant force and couple moment about point A of the system are both zero.

Determine the magnitude of the projection of the moment cause by the force about the aa axis.

Replace the force at A by an equivalent force and couple moment at P.