How many links are there in this mechanism? The shaded cross-sectional areas are part of the ground. 229 22.9 45 typ.

Homework Draw (i) the sectional view from the front and (ii) the view from the left of the sliding support, shown in Fig. below. 2 HOLES, DIA 8 48 48 友229) 32 44 64 20 Fig. 4.13 Sliding support

Equation of Motion The triangle is made of 3 rods of a length 1-2.1ft and density is p = 4 lb/ft. ^ 1) Establish what you think is the best Coordinate system for this problem and explain why. 2) Find the location of the center of gravity (x bar and y bar). 3) Find the weight of the triangle. 4) Find the Mass Moment of Inertia at O of the triangle. 5) Draw the FBD and kinetic diagram of the triangle. 6) Find the accelerations of the triangle (angular and linear). 7) Find the Pin Reaction at O: . On and Ot • or Ox and Oy . • Magnitude O, and direction. In the box below, enter the angular acceleration & in rad/s with one decimal. Include the sign + if CCW or - sign if CW.

15 50 3: Draw three projection of two bodies shown. 38 40 30 24. 19 15 Ø30 20 15 19] 40 10 15 15 30 R30 55 25 30 75 HW-7 65