Posted by **Anya** on Tuesday, December 16, 2008 at 7:10pm.

the question is to write down a relationship for the potential energy of a body of mass m, when it is a distance r from the center of mass M and radius R.explain all symbols used

and show that if a body is to escape the gravitational influence of the planet, it must be launched from the surface of the planet with a minimum speed, v = (8 pi GR^2 p/3) ^1/2 ..where G is grav. const, and p is the density of the planet

## Answer this Question

## Related Questions

- A physics question - I was researching amusement park rides for a recent project...
- Physics - A round body of mass M, radius R, and moment of inertia I= BMR^2 is ...
- Physics - A round body of mass M, radius R, and moment of inertia I= BMR^2 is ...
- Physics - A round body of mass M, radius R, and moment of inertia I= BMR^2 is ...
- Physics Question......many thanks - A projectile is shot directly away from ...
- Physics - A at disk of material has the same mass as the Earth, 5.98E+24 kg, and...
- Physics/Math - Zero, a hypothetical planet, has a mass of 1.0 1023 kg, a radius ...
- Physics - Zero, a hypothetical planet, has a mass of 1.0x10^23 kg, a radius of 3...
- Physics - I need help with b... I found that k=.750880 for part a but I can't ...
- mechanics - A string is wound around a uniform disk of radius R and mass M. The ...