Kinematics problem

Dec 2019
2
0
Czech Republic
Hi, i need help with these problems. It would help me a lot. Thank you.



1-1.png1-2.png
 
Jan 2019
64
45
I need help understanding what exactly is being asked in both sketches.
 
Dec 2019
2
0
Czech Republic
I need help understanding what exactly is being asked in both sketches.
I am sorry for my English. In the first problem - velocity and acceleration of points A,BC,D and

in the second problem to determine the dependency of alpha and beta on S