a roller is a machine that helps moves objects along a surface but is not attached to the object. A wheel is attached to the object that it is trying to move.
A wheel is an assembly consisting of rotors, bearings, and tires. Wheels are attached to axles, turning to move the vehicle. Tires are the air filled rubber covering of the wheel.
No, they are the same thing.
what is
the difference between lever and pully is the you and me dont know that
The answer is the roller coaster is much more sexyer
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No
The roller bearing dates to at least 40 BC, and it was applied to pulley blocks sometime in the dim past of history. There is probably no way to know when someone first put a roller bearing into a pulley block.
A lever is an adaptation of a stick or tree branch. A pulley is an adaptation of a wheel.
A rode roller sailboat anchor pulley is a part that can be replaced on a boat. Some people can find the part on sites such as ebay.
there are two kinds of pulleys. A movable pulley and a fixed pulley. But a wheel and axle have a lever and a inclined plane. [someone] :]
there are two kinds of pulleys. A movable pulley and a fixed pulley. But a wheel and axle have a lever and a inclined plane. [someone] :]
there are two kinds of pulleys. A movable pulley and a fixed pulley. But a wheel and axle have a lever and a inclined plane. [someone] :]
Movable pulley is attache to the object you are moving while Fixed Pulley changes direction of the applied force.LaDy_caRoLi "Christine carren alcantara"