How can you force a 2000 iMac to start?

To force a 2000 iMac to start, first ensure it is plugged into a power source and check that the power outlet is functional. If it doesn't power on, try resetting the System Management Controller (SMC) by unplugging the power cord for 15 seconds, then reconnecting it and waiting another 5 seconds before pressing the power button. If the iMac still doesn't start, you may need to check for hardware issues, such as a faulty power supply or RAM.