trying to design an experiment for linear momentum. Could someone tell me whether this would work.
Get a wooden toy car and attach it to some string which is hung over a pulley on the end of the table. The other end of the string has a fixed mass at the end. As the mass is fixed the rate of change of momentum of the trolley is fixed. The length the trolley will travel over is 1m. Light gates will be used to measure the velocity of the trolley half way along (0.5m). I will change the mass of the car by placing masses on top of it. My question - if I measure the velocity at the light gate will the product of mass x velocity be the same if I keep the applied force the same? Or do I have to keep the time the same as well?