- #1

cheechnchong

- 132

- 1

My Approach:

(a) Finding Velocity:

V = (1.5 x 10^11 m)/(3.16 x 10^7 s) =

**4747 m/s**

--I did this because I'm assuming the Earth's orbit of the sun is constant

(b) Tangential Speed:

V = rw = (1.5 x 10^11 m) (4747 m/s) =

**7^14 .12 x 10m/s**

(c) Find Centripetal Acceleration:

a(centripetal) = (V tangential)^2 / (radius) = (7.12 x 10^14 m/s)^2 / (1.5 x 10^11 m) =

**3.38 x 10^18 m/s^2**

Please check my work and point out a quick way to fix something. I know this can be easy for any physics expert, but I am just a beginner-so help me in simple terms