What does SetLinearVelocity represent in speed and time?

[ZeroPoint]

Hi,
A simple question but can't find any info about it.
What does SetLinearVelocity represent in speed and time? Meters per second? Meters per simulation tick?
I'm developing a kinematic controller which is a fast moving tank that fires projectiles. Here's the code that fires the projectile.

Code: Select all

 Vector Bspeed;
                    // Get direction normal of turrent for shooting cannon ball
                    Bspeed.x=(ViewAhead.x-CamPosition.x);
                    Bspeed.y=(ViewAhead.y-CamPosition.y);
                    Bspeed.z=(ViewAhead.z-CamPosition.z);
                    // Offset starting point of cannon ball so it doesn't start inside of tank
                    btRigidBody* sphere=addSphere(5.0,CamPosition.x+Bspeed.x*21,CamPosition.y+Bspeed.y*21,
                                                  CamPosition.z+Bspeed.z*21,5.0);
                    sphere->setLinearVelocity(btVector3(Bspeed.x*100+Velocity.x,Bspeed.y*100+Velocity.y,Bspeed.z*100+Velocity.z));
                    sphere->setCollisionFlags(sphere->getCollisionFlags() | btCollisionObject::CF_CUSTOM_MATERIAL_CALLBACK);

The tank is moving faster than the projectiles!

[xexuxjy]

should be m/s (based on the standard gravity values)