Imagine a light (500gr) of package is moving on a conveyor from west to east with a speed 250 m/minute. I have a heavy device(metal stick) that'll hit it from north to south direction so that the package will rotate to south keeping it's initial speed. What should be the formula to calculate the device's speed? I couldn't figure it out with from where to start, linear momentum formulas or impulse? Mass of the device will be much higher compared to small packages.