- #1
al_201314
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Hi guys I need help with this after quite some time
A piece of rock far out in space is relative to the earth. Under the influence of the Earth's gravitational attraction, it begins to fall towards the Earth along a straight adial line. With what speed will the rock hit the earth? (Given radius of Earth = 6.4 x 10^6m)
I couldn't find the radius of orbit of the rock. I suppose since it is at rest relative to Earth it must have the same angular speed? How do I find the radius from here? I figured that its period is not the same as the Earth's as the T^2 = k(r^3).
Thanks a lot!
A piece of rock far out in space is relative to the earth. Under the influence of the Earth's gravitational attraction, it begins to fall towards the Earth along a straight adial line. With what speed will the rock hit the earth? (Given radius of Earth = 6.4 x 10^6m)
I couldn't find the radius of orbit of the rock. I suppose since it is at rest relative to Earth it must have the same angular speed? How do I find the radius from here? I figured that its period is not the same as the Earth's as the T^2 = k(r^3).
Thanks a lot!