Quick and easy question been pondering it for days.

[avolaster]

say you have a force generating object such as a rocket. this force generating object suddenly gains mass (avoiding the inelastic collision part). the rocket itself is creating a constant force. but now its got this mass. what is the new force of the entire thing?declining frictional loss, please tell me how to calculate this generally (thats why no numbers were involved). I realize that if it is fighting gravity it loses force equal to its weight. but is there any force lost if it isn't fighting gravity. i mean the extra mass has to slow it down some how, right?

example: the rocket by itself can make 10N of force. but then it gets a mass attached to it. how much force does the rocket and mass together create? 9N? 8N? obvoiusly force is not to scale.

If you need clarification PLEASE ASK.

 

[berkeman]

say you have a force generating object such as a rocket. this force generating object suddenly gains mass (avoiding the inelastic collision part). the rocket itself is creating a constant force. but now its got this mass. what is the new force of the entire thing?declining frictional loss, please tell me how to calculate this generally (thats why no numbers were involved). I realize that if it is fighting gravity it loses force equal to its weight. but is there any force lost if it isn't fighting gravity. i mean the extra mass has to slow it down some how, right?

example: the rocket by itself can make 10N of force. but then it gets a mass attached to it. how much force does the rocket and mass together create? 9N? 8N? obvoiusly force is not to scale.

If you need clarification PLEASE ASK.

Adding mass to the rocket does not change its thrust. It lowers its acceleration, via F=ma, but does not change the force generated by the rocket exhaust.