Depends.
The smaller the driver(the rear sprocket is) the heavier it gets to pedal. If you're strong enough to keep turning the pedals at the same pace, a smaller driver will make you faster.
If you're not strong enough, or don't want to replace the driver for some other reason, then you have to practise pedaling faster instead.
The speed of the rod is proportional to the number of teeth on the cog and that which is driving the cog. If the driver remains the same then in order for the driver and the cog to mate one typically needs to reduce the number of teeth on the cog when it is made smaller. Thus the ratio of the teeth on the driver to that on the cog is increased as will its speed.
Guessing an 11T cog (sproket), maybe a custom 10T.
At the rear they're called sprockets(unless you speak BMX, then they're called drivers), at the front they're called chainrings, or chainwheels(unless you speak BMX, where they might be called sprockets)
Two, but this is not the same as how many speeds the BMX bike in question has. A BMX bike has a sprocket in the front, and a cog in the back and each is a gear, but is considered a single speed bicycle because two gears and a chain are required for transmission of rotational force from the crankset to the rear wheel.
A 25-tooth sprocket on a BMX bike typically pairs with a 9-tooth rear driver or cog, which is common for BMX setups. This combination provides a good balance of acceleration and top speed, making it suitable for street and park riding. However, riders may choose different tooth combinations based on their riding style and preferences.
I saw how a cog building is made. A cog that is walking down the street will choose what building he will turn a cog building into. He walks into that building and then it automatically turns into a cog building.
cog is a robot
a cog wheel is the main part that runs the cog entire body
A 2.0 version cog is a cog that when you destroy it, it will turn into a skelecog.
Cog11 invented the cog
A "cog" is a toothed wheel, typically used to transfer movement and power between two rotating shafts. In a broader sense, it can refer to a component within a larger system that plays a crucial role in its functioning or operation.
A simplistic answer is: A cog wheel is a circular disc that has teeth round the edge. These teeth usually mesh with the teeth of another cog. If one cog is turned, the other cog moves too. The cogs can be made from metal or plastic.