The mechanism shown isused to split a lotus seed. Piston Q has areciprocal movement and is connected to the floating linksof length l2. These areattached to the rocker linksRelease. The picks at the end of the rocker links come intocontact with and split the lotus seed. The geometry of the mechanism is shown below: l1 =55cm l3 =55cm lp =60cm ? = 3 radl2 =17.2cm l4 =12cm h=14cmAt the time shown, the rocker arm makes an angle of ?1 = 1.05? rad with the horizontal axis and has the following motion:

?1(dot) = -2 rad/s ?1(double dot) = 0.5rad/s^2

determine:

a) the position, speed and acceleration of the cursor Q.

b) the position, velocity and acceleration of the peak P.

Connecting rod Piston rod Output link Air cylinder 02 11- Base h Y a Point taper punch 01 Q P