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0 - 4fts R 10 At the instant shown, the velocity of the slider block at joint A is 4 ft/s whereas the joint B is moving in the horizontal direction. a) Draw the kinematic diagram of the link AB showing: i. xyz reference axis system (with i, j, k) ü. Velocity at point A iï. Velocity at point B iv. Relative position vector TB/A v. Angular velocity vector wa of link AB about point A and its rotation sense. (5 Marks) b) Draw a sketch to resolve va into its components. (2 Marks) c) Write each of the vectors of the kinetic diagram in their cartesian vector form. (5 Marks) d) Use the relative velocity equation on link AB to estimate the velocity of point B and the angular velocity of link AB about point A. What is the sense of rotation. (10 Marks) Ans: 2.83 ft/s, 2.83 rad/s e) Explain why the velocity of point C is zero. (3 Marks) f) Draw the kinematic diagram of the link BC showing: (5 Marks) i. xyz reference axis system (with i, j, k) ii. Velocity at point B ii. Relative position vector TB/C iv. Angular velocity wc of link BC about point C. Use the relative velocity equation on link BC to estimate the angular velocity of link BC about point C. What is sense of rotation? (5 Marks) Ans: 2.83 rad/s.