Answer
Relative to the chair, your speed is zero.
Relative to the Sun, you are moving at approximately 107,000 km/hr.
Work Step by Step
This is discussed on page 40.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.