D1 ( 13 , 19 ) CI (4, 15 ) C2 ( 13 , 13) D2 ( 22 ,9) To minimize the spread of Covid-19, the librarian has proposed the use of an automatic book- keeping system so that books can be returned safely...

pleaase aanswer the following:

Extracted text: D1 ( 13 , 19 ) CI (4, 15 ) C2 ( 13 , 13) D2 ( 22 ,9) To minimize the spread of Covid-19, the librarian has proposed the use of an automatic book- keeping system so that books can be returned safely without direct human intervention. 1) Referring to the figure above, design the four-bar mechanism to move the books from one point to another 2) Based on the design you proposed before in question 1, determine: i. The number of actuators needed to move the mechanism ii. The average velocity of the rocker when the input link rotates counter-clockwise at 47 rad/s.