Please help (1 Viewer)

[the lifesaver]

T = 2 pi square root r^3/GM

G = 6.67 * 10^-11

M = 1.994 *1 0^30

R = 2.28 *10^11

Cant seem to get the right answer. Correct answer is 687 days.

Could someone please show how to get to this answer.

Thanks

 

[frenzal_dude]

So this is your equation:

I'm assuming r = R?
If so then the answer is this:
59313922.43

If that's not the right answer double check the values you are given for G M and r, and make sure the equation is how it appears above.

 

[frenzal_dude]

OK I've worked it out, the answer we get is in seconds, so if you convert that to days you'll get 686.5 days which rounds up to 687 days