Recent content by vuvan

I put here https://www.physicsforums.com/showthread.php?t=433353 attach file thank for taking care PS: I post twice , sorry if you feal upsset

So i reckon the solution is wrong ? how do you think

I reckon that we only apply conservation of linear momentum for object which has total net force acting on equal zero but in this case , the gravity force still exist , total net force is mg Thank in advance

Homework Statement I reckon that we only apply conservation of linear momentum for object which has total net force acting on equal zero but in this case , the gravity force still exist , total net force is mg Thank in advance Homework Equations The Attempt at a Solution