Physics resistance force question (Newton's Laws)

[modis15]

1. Homework Statement
If a 25kg mass has a constant velocity of 5m/s, when pushed horizontally by a 5 N force, what amount of resistance force is present?

2. Homework Equations
F=ma

3. The Attempt at a Solution

I'm pretty sure the velocity is irrelevant, ... I made a diagram but that didn't help much. I'm not sure exactly what it is asking, aka I don't know what resistance force is or how to find it. I'm not sure where to start so any help would be appreciated!

 

[grzz]

What are the horizontal forces on the mass?

 

[modis15]

Just the 5 N right?

 

[grzz]

Is the mass accelerating?

 

[modis15]

No, it doesn't have any acceleration.

 

[grzz]

Therefore it cannot have only the 5n force acting on it because otherwise it will acc.

 

[modis15]

Ooohhh, I think I see what you're getting at. The resistance force must be 5 N also, right?

 

[grzz]

Correct! Now you ARE thinking.
Physics becomes easy... when you think enough.
Now draw a diagram showing the forces and continue.