Solve the flowing Problem using Relative Velocity Method;

In a pin jointed four bar mechanism, as shown in Fig $,AB=300mm,BC=CD=360mm,$ and $AD=600mm.$ The angle BAD$=80.$ The crank $AB$ rotates uniformly at $100r.p.m.$

With a scale $1$:$10$

Find the velocity of Point B

Find the angular velocity of the link BC

Find the velocity of Point C