how to figure out the speed of a rube Goldberg machine?? I really need help, this

Explanation:

Velocity

    Velocity is the rate of distance covered in a direction. To calculate the velocity of an object, you divide the change of distance of the object (initial to final) by the change in time(initial to final). It is similar to speed, but involves direction which speed does not. We found the velocity of all the moving objects in or machine, such as the marbles, race car, and the wheel and axel.

Acceleration

    Acceleration is the speeding up or slowing down of an object. It is calculated by dividing the change in velocity by the change in time (a=Δv/Δt). Acceleration's unit of measurement is m/s^2. We found the acceleration of all the objects that are falling, speeding up, and slowing down; such as the dominos falling, the car speeding up due to gravity, and the marbles slowing down after hitting the mixing bowl.

Speed can vary from machine to machine.

Force

    Force is a push or pull on an object. To find the force of an object, calculate the product of the mass of the object and the acceleration of the object. Force is measured in newtons. We were able to find the force of all of the  objects on our machine, because even if an object is not moving, it is still exerting a force due to the acceleration of gravity (9.8 m/s^2).

My dad

Explanation: