Question

A wooden block and a lead ball are connected by a light string that passes over a frictionless pulley. The block has a mass of 6kg and the ball has a mass of 2kg. after they are released from rest, the block will slide along the wooden ramp.
a.) which direction will the block slide (up or down)?
b.) After 2 seconds, what will be the speed of the block?
c.) If I place the lead ball with a different mass, what mass can i use to ensure that the block does NOT move when I release it.