- #1
Jack981
- 2
- 0
I was thinking about this question:
So if a rock fell 20,000 meters to Earth assuming no air resistance and no other gravitational forces from anything but Earth, how long would it take the rock to hit Earth? Keep in mind acceleration is changing through the gravity equation as the rock gets closer and closer to Earth -> g=m1(m2)G/r^2.
(I'm not sure if its necessary but if it is, say the rock is 5 kg).
I put undergrad because this was not a question that came up in class and I think it involves integration.
This is not a hw/cw question it is a question I came up with on my own.
So if a rock fell 20,000 meters to Earth assuming no air resistance and no other gravitational forces from anything but Earth, how long would it take the rock to hit Earth? Keep in mind acceleration is changing through the gravity equation as the rock gets closer and closer to Earth -> g=m1(m2)G/r^2.
(I'm not sure if its necessary but if it is, say the rock is 5 kg).
I put undergrad because this was not a question that came up in class and I think it involves integration.
This is not a hw/cw question it is a question I came up with on my own.