(Solved): Only parts C and D 2. A cam lobe in the figure below has a shape given by r=20+15cosmm. Pin P sli ...

Only parts C and D

2. A cam lobe in the figure below has a shape given by $$r=20+15\cos ?\mathrm{mm}$$. Pin $$\mathrm{P}$$ slides in a slot along arm $$AB$$ and is held against the cam by a spring. Arm $$AB$$ rotates counterclockwise about $$A$$ at a constant rate of $$30\mathrm{rev}/\min$$. Solve the following problems when $$?=40^{?}$$. (a) The velocity and acceleration of Pin $$\mathrm{P}$$ in the Polar coordinates. (b) The velocity of Pin $$\mathrm{P}$$ in the Path coordinates. (c) The tangential component of the acceleration of Pin $$\mathrm{P}$$ using an acceleration vector diagram. Note that the tangential direction is coincident with the direction of the velocity. (d) The normal component of the acceleration of Pin $$\mathrm{P}$$ using the acceleration vector diagram. (e) Redo parts (c) and (d) using a coordinate transformation.