1.If OA has a constant counterclockwise angular velocity of 10rad/s, calculate the angular acceleration of link AB and link BC for the position where the cordinates of A are x=-60mm and y = 80mm. Link BC is vertical for this position.
2.Two identical squares (each18x18mm ) sit on the x axis and are joined at the y axis to form a rectangle. What is the rectangle’s product of inertia?
Possible answers
a) -2.62*10^4mm^4
b)0
c)2.62*10^4mm^4
d) 5.25*10^4mm^4
3.If = 300 N , determine the required minimum compression in the spring so that the wedge will not move to the right. Neglect the weight of A and B. The coefficient of static friction for all contacting surfaces is .2 Neglect friction at the rollers.