Chapter 4, Problem 10P

Determine the moment of the force F=40i8j+5kN about the y-axis.

Determine the magnitude of the moment of the 150-N force about point O. Also find the perpendicular distance between the line of action of the force and point O (as in M = Fd).

The trap door is held open by the rope AB. If the tension in the rope is T = 60 lb, determine its moment about the y-axis.

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 combined moment of the two forces about point about x, y, and z axis. The magnitudes of the forces are P = Q = 28.20 4 m 1. 3 m 2 m 2 m B

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

Using a ring collar the 75-N force can act in the vertical plane at various angles 0. Determine the magnitude of the moment it produces about point A if 0=8 in N.m 2 m 1.5 m 75 N

Q3/ The 30-N force P is applied perpendicular to the portion BC of the bent bar. Determine the moment of P about point B and about point A (in two different ways). P = 30 N C 1.6 m 45° 1.6 m

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