Hello, I just started basic mechanics and what seems to mess with me is this:
take a 1kg cube in a string, with how much force do you need to push it to give it the even speed of 2M/S, In the book it says F1-F2=0, so 9,8N=F2, so you have to push it upwards with 9,8 newtons... but how the hell does that mean it get's speed... why does it not stop 100% since it has equal force on both sides, and even more, why does it get 2m/s and not 3 or 4m/s... this is what has been messing with me, I can't seem to get it.
take a 1kg cube in a string, with how much force do you need to push it to give it the even speed of 2M/S, In the book it says F1-F2=0, so 9,8N=F2, so you have to push it upwards with 9,8 newtons... but how the hell does that mean it get's speed... why does it not stop 100% since it has equal force on both sides, and even more, why does it get 2m/s and not 3 or 4m/s... this is what has been messing with me, I can't seem to get it.