Final answer:
The mechanical advantage obtained in a system of unequal spur gears with a driver gear of 60 teeth and a driven gear of 30 teeth is greater than one.
Step-by-step explanation:
The mechanical advantage obtained in a system of unequal spur gears can be determined by calculating the ratio of the number of teeth on the driver gear to the number of teeth on the driven gear.
In this case, the driver gear has 60 teeth and the driven gear has 30 teeth. Therefore, the mechanical advantage is 60/30 = 2. This means that for every revolution of the driver gear, the driven gear will rotate twice.
So, the mechanical advantage obtained in this system is greater than one.