A cord connected at one end to a block which can slide on……….

A cord connected at one end to a block which can slide on an inclined plane has its other end wrapped around a cylinder resting in a depression at the top of the planeas shown in the figure. Determine the speed of the block after it has traveled 1.60 m along the plane, starting from rest for the following circumstances.

http://i.imgur.com/crj4u.gif

a) Assume there is no friction.