Physics Question?
I need help with 2 Physics questions. If you can answer just 1 of them, it would be greatly appreciated and whatever you can solve will be fine.
1. An Auto race is held on a circular track. A car completes one lap in a time of 15.1seconds, with an average tangential speed of 43.7 m/s. Find the following:
a. the average angular speed
b. the radius of the track
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2. The earth orbits the sun once a year (3.16 x 10^7 seconds) in a nearly circular radius 1.50 x 10^11 m. With respect to the sun, determine the following:
a. The angular speed of the earth
b. The tangential speed of the earth
(In the second question, when I put 10^7, the ^ symbol stands for to the power of 7)