Question

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 νe. Its speed with respect to the satellite
(a) will be less than νe
(b) will be more than νe
(c) will be equal to νe
(d) will depend on the direction of projection.

Answer 1

Answer:

a) less than ve.......

Answer 2

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 νe. Its speed with respect to the satellite will depend on the direction of projection.

Explanation:

• The speed of the particle to be projected from the orbiting satellite to just escape from the earth with respect to the satellite will depend on the direction of projection.  
• This is because, an object projected vertically requires more speed to escape from the earth whereas an object projected at an angle from the vertical direction requires lesser speed.  
• Thus, the speed of the particle depends on whether the particle is projected at an angle from the satellite or not.