Question

The 20-N horizontal force acts on the handle of the socket wrench. What is the moment of this force about point B? Specify the coordinate direction angles $\alpha$ , $\beta$ , $\gamma$ of the moment axis.

Answer 1

Force along Ý _ axis = 20 cos 60° =20×--10N Force along X-aas =20 sin 60' =20S2-10J3 N F-10,6i+10 (neton) The displacement between A and B is given by the vector0.01i +0.2j (metre) Momert of Force about B , M B =rABx F Direction angles cos α 0 cos β=-=0 cos γ= y 180