how to control the speed for a AC motor?????

can v use a fan regulator to control the speed of the AC motor????

How large of a motor and what type of an AC motor?

Ron

Wat about a sewing machine motor?????how to control its speed????
would it be capable of pulling 5 kg weight???

If you want to control the speed of a simple universal sewing machine motor similar to these and do it simple and easy I suggest you Google "sewing machine foot rheostat". Most universal motors like this are brush typr motors and run on AC or DC. They use a carbon pile rheostat for speed control placed in series with the motor. Will it lift or pull a 5 kg weight? I doubt it unless it is geared. I don't know what the torque would be as it would depend on the motor.

Ron