We're given a problem: A 2.0 kg mass hangs from a rope attached to an unknown mass m on a frictionless ramp inclined at 20 degrees above the horizontal. This is drawn as a diagram which shows the incline at 20 degrees where the hanging mass is 2.0 kg and the attatched mass on the frictionless ramp is labeled m (found in an earlier problem m=5.8 kg). The question i'm having issues with is if the 2.0 kg mass is given a quick nudge downwards, both masses will start to move. After being nudged, will the masses gradually speed up, slow down, or maintain at a constant speed? explain. What I was thinking is that since it's a frictionless, there's nothing stopping the objects from maintaining the velocity they were given by whatever was nudging them, so they would have no reason to stop and therefore continue at a constant speed. I'm not sure if this is right or not...?