use whatever settings would work and then wake it up when you get close to it... @abdullayevtebriz If you want it to stop... there is a bug currently with sleep in bb2 beta 4 (it won't wake), you will have to use a transform logic to replace it's linear velocities to 0 and 0... but sleep might be working in 1.3.6 not sure...
@abdullayevtebriz if you want it move to and fro you can add two logic at two position where one logic will change the velocity and will send it towards other and vice versa.