How do I delete the increasing Y force?

Hello, i'm making a game and I have a problem.

My object has physics, and want to make an up movement doing an -90 impulse.

The problem is that when the object is falling, the Y axis force increases and when its a long falling the object does not go up, it just stop its velocity.

So my question is, how do I delete the accumulated force when the object is falling?

Or also other solution tu make the object goes up, but with physics?

Thank you very much!! <img src="smileys/smiley1.gif" border="0" align="middle" /> <img src="smileys/smiley1.gif" border="0" align="middle" />

Set Velocity is your best bet here. You can set the vertical velocity to zero before applying the impulse, or just set the vertical velocity to -90

To set just the vertical velocity, just set the X velocity to Self.Physics.VelocityX