Chapter 4, Problem 25P

Determine the moment of a force F=(0.5i-2.0j+7.0k) kN acting at A(5, -4, 0)m about axis BC where B (6,8,4)m and C (-6, -5,8)m. Also express the result in vector form. What is the prependicular distance between F and the axis BC?

Determine the moment of the force F about point P. Express the result as a Cartesian vector. Z x P 2 m 2 m- 0 3 m 2 m A 1 m F = {2i +3j 6k} kN 3 m

If F1=(140i+-150j+95k)kN, and F2=(-230i+280j+80k)kN, determine the resultant moment produced by these forces about point O. Express the result as a Cartesian Vector (Fill Mx, then My, then Mz). ( don't forget to put the sign for each component) My is 4m My is F2 Mz is 3m

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

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 force about point A as shown in the Figure below.

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

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

1) Determine the moment of the force about point 0. 100N 2m -5m-