Steps By step on solving this $4$ question

Answer the question given below with neat and appropriate diagrams.

For the slider crank mechanism shown in Figure $1$:

a$)$ Plot the mechanism to scale $(2\mathrm{.}5$ marks$)$

b$)$ Determine all instantaneous centres $(2\mathrm{.}5$ marks$)$

c$)$ Determine velocity of point $B(V_B)$ by instantaneous centre methods $(2\mathrm{.}5$ marks$)$

d$)$ Find $V_8$ by Graphical method and verify the results found by instantaneous centre methods $(2\mathrm{.}5$ marks$)$