Thanks, again. I need input of 2V to 3V for turn on the Motor and need it run for 3 to 5Second or less than minute.Do you want to push a button, and then run the motor for 3 to 10 seconds? The simplest thing I guess will be a 555 timer configured as a mono stable (one shot) circuit. The 555 will most probably not be able to drive the motor. So you will need some sort of driver circuit also. How much current do your motor draw?
To get you started Google 555 timer Mono stable. This forum are also full of such circuits.