Question

What is the linear speed of Saturn in its orbit about the sun? Give your answer in meters per second. (Consider the orbit of Saturn to be a circle of radius 1.43×1012 m and that it takes 29.50 yr for one orbit around the sun.)

Answer 1

speed=2PI*radius/period

so you want period in seconds...

29.50yr(365.25 days/yr)(24hrs/day)(3600sec/hr)= period in seconds

Answer 2

930949200