Home work 1 : 10 points For a four bor mechanism with l1=80;l2=40;l3=85;l4=50mm define the liner velocities of point B and C, detine the anqular velocities of the links 3 and 4 , w3 and w4; detine the accelentions of points B and C and define the angular accelerations of for2=60;2=100rad/s2;2=30rad/s