Question

The orbital speed of Jupiter is:

• A. greater than the orbital speed of the earth
• B. less than the orbital speed of the earth
• C. equal to the orbital spped of the earth
• D. zero

Answer 1

Answer: (B)

less than the orbital speed of the earth

Answer is B.

Jupiter is the only planet that has a center of mass with the Sun that lies outside the volume of the Sun, though by only 7% of the Sun's radius. The average distance between Jupiter and the Sun is 778 million km (about 5.2 times the average distance from the Earth to the Sun) and it completes an orbit every 11.86 years.
The orbital speed of Jupiter is 0.434 approximately whereas the orbital speed of Earth is 1.
Hence, The orbital speed of Jupiter is less than the orbital speed of the earth.