how do i remove my apple id, user name and password from ipad2?

Hi Greenworks,

Welcome to Apple Support Communities. We've got great information to share with you to help you sign out of your Apple ID on iPad.

In order to sign out, you'll want to follow these instructions and enter the password to the Apple ID when prompted:

Sign out of iCloud on your iPhone, iPad, iPod touch, Apple TV, or Mac - Apple Support

If you've forgotten the password, refer to the following guide for steps to reset it:

If you forgot your Apple ID password - Apple Support

If you aren't the original accountholder of the Apple ID, you'll want to reach out to the previous owner or seller to request their help and share this guide. They may be able to sign out remotely following these steps:

See and remove your devices that are associated with Apple ID purchases

We're here for you if you've got any questions.

Have a great day!

The article below lists some other places you should sign out.

What to do after you change your Apple ID or password - Apple Support.