I am trying to build a mousetrap car for my physics class and i don‘t know what to use as a hook to grab my string on my rear axle for my mousetrap car. Please suggest something reasonable.
This is a car that is powered by a mousetrap? Maybe you could try what those old caged gyroscope toys and some tops used to use. Drill a hole through the axle, and put your string through it. Wrap the string around the axle a few times. When you yank on the string, you spin the axle until the string comes loose. I don't know if a mousetrap would provide enough torque for this to work, and you'd have to make sure your string was JUST short enough to ensure that it comes out, or else it'll just get wrapped around the axle again, stopping your car.
