Advertisements
Advertisements
प्रश्न
What is meant by escape speed in the case of the Earth?
Advertisements
उत्तर
The escape speed is independent of the direction in which the object is thrown. Irrespective of whether the object is thrown vertically up, radially outwards or tangentially it requires the same initial speed to escape Earth’s gravity force.
This can be written as ve = `sqrt(2"g""R"_"E")`
APPEARS IN
संबंधित प्रश्न
The kinetic energies of a planet in an elliptical orbit about the Sun, at positions A, B and C are KA, KB and KC respectively. AC is the major axis and SB is perpendicular to AC at the position of the Sun S as shown in the figure. Then
Why is the energy of a satellite (or any other planet) negative?
What are geostationary and polar satellites?
Why is there no lunar eclipse and solar eclipse every month?
How will you prove that Earth itself is spinning?
Derive the time period of the satellite orbiting the Earth.
Derive an expression for the energy of satellite.
Explain in detail the geostationary and polar satellites.
In the following, what are the quantities which that are conserved?
Four particles, each of mass M and equidistant from each other, move along a circle of radius R under the action of their mutual gravitational attraction. Calculate the speed of each particle.
