While visiting Planet Physics, you toss a rock straight up into the air at 11m/s and catch it 2.5 s later. While you visit the surface, your cruise ship orbits at an altitude equal to the radius of the planet every 230 min. What are the mass & radius of Planet Physics?
The Attempt at a Solution
0m=0m + (11m/s)(2.5s) + .5a(2.5s)^2
230 min = 13800s angular velocity = 2pi rad/ 13800 = 4.55E-4 rad/s
ac= angular velocity^2 * r
8.8= (4.55E-4)* r
r=4.25 * 10 ^7 m This is not the correct answer. Could someone please explain what I am doing wrong?