ESCAPE SPEED

The escape speed from earth's surface is 11kms^(-1) . A certain planet has a radius twice that of earth but its mean density is the same as that of the earth. Find the value of the escape speed from the planet.

A satellite is orbiting the earth close to its surface. A particle is to be projected from the satellite to just escape from the earth. The escape speed from the earth is v_c . Its speed with respect to the satellite

A uniformly charged sphere has radius R and charge Q on it. A negatively charged particle having mass m and charge – q shoots out of the surface of the sphere with speed V. The minimum speed (V_0) for which the particle escapes the attraction of the sphere may be called as escape speed. Will the value of V_0 depend on magnitude of q? [Recall that escape speed of a body from the surface of the earth does not depend on its mass].

The escape speed of a particle on the surface of the earth is 11.2km/second. A body is projectwith thrice this speed from the surface of the earth. What is the speed of the body in the outer space far away from the earth?

The escape speed of a projectile on the earth's surface is 11.2 km s^(-1) . A body is projected out with thrice this speed. What is the speed of the body far away from the earth? Ignore the presence of the sun and other planets.

Statement I: If a particle projected horizontally just above, the surface of the earth with a speed greater than escape speed, then it will escape from gravitational influence of the earth. Assume that particle has a clear path. Statement II: Escape velocity is independent of its direction.

What happens to a body when it is projected vertically upwards from the surface of the earth with a speed of 11200 m/s , ? Compare escape speeds for two planets of masses M and 4M and radii 2R and R respectively.

What is the escape speed for an object in the same orbit as that of Earth around sun (Take orbital radius R) but far from the earth? (mass of the sun = M_(s) ) (b) If an object already has a speed equal to the earth's orbital what minimum additional speed must it be given to escape as in (a) ? .

A body is projected away from the earth's surface with a speed 3ve where ve is the escape velocity.The speed of the body at infinity will be: