Build an electrical machine (a machine comprised of motors and wires) to do a task
Problem:
Must include at a wire system
Must be able to calculate the Mechanical Advantage (MA)
I designed a system that when two of four buttons were pressed the car would move one direction and when the other two of four were pressed, the car would move the opposite direction. The car was driven with a single motor powered by a battery back of 6 volts. the motor drove a axel which drove a gear, the gear had a chain connation to the drive axel which powers the car.