1. The device in Figure 1 is used for
surgical replacement of the knee joint. If
the force acting along the leg is 360 N.
Determine its components along the x
and y’ axes.
2. A roller of weight 800 N and radius
240 mm is pushed by force P over a step
at A as shown in figure 2. Determine
magnitude of force P to just start the
roller over the step.
Figure 2
4. Knowing that the tension is 2125 N in
cable AB and 2550 N in cable AC, determine
the magnitude and direction of the resultant
of the forces exerted at A by the two cables as
shown in figure 4.
Figure 1
3. A smooth sphere of weight W is
supported by a string fastened to a point
A on the smooth vertical wall, the other
end is in contact with point B on the wall
as shown in figure 3. If length of the
string AC is equal to radius of the sphere,
find tension (T) in the string and reaction
of the wall.
Figure 3
Figure 4