Sage-Tips

What is the critical velocity of satellite?

We know that the critical velocity is the minimum horizontal velocity given to a satellite to keep it revolving in the earth’s orbit. So, it is obtained by keeping the gravitational force of the earth on the satellite equal to the centripetal force required to keep it moving in the earth’s orbit.

What is the formula for critical velocity?

Vc=kηdr.

What is the expression for orbital velocity of a satellite?

The expression for orbital velocity is √g( R+h) = √gr. Orbital velocity is the velocity needed to balance the pull of gravity on the satellite with the inertia of the motion of the satellite, the tendency of the satellite to continue.

How do you derive the equation for the velocity of a satellite?

As seen in the equation v = SQRT(G * Mcentral / R), the mass of the central body (earth) and the radius of the orbit affect orbital speed. The orbital radius is in turn dependent upon the height of the satellite above the earth.

What is critical velocity obtain an expression for critical velocity of an orbiting satellite?

The satellite is moving with velocity Vc and the radius of the circular orbit is r = R + h. This is the expression for critical velocity of a satellite moving in a circular orbit around the Earth.

What is critical velocity of 10 an expression for critical velocity of an orbiting satellite on what factor does it depend?

It depends upon the mass of the Earth and the height at which the satellite is the revolving or gravitational acceleration at that altitude.

What is critical velocity and its expression?

Answer: The greatest velocity with which a fluid can flow through a given conduit without becoming turbulent. = critical velocity of the satellite in the given orbit. r = (R + h) = radius of the circular orbit. For the circular motion of the satellite, the necessary centripetal force is given as.

What is mean by satellite and derive the expression for the orbital velocity of the satellite?

Expression for orbital velocity: Suppose a satellite of mass m is revolving around the earth in a circular orbit of radius r, at a height h from the surface of the earth. Let M be the mass of the earth and R be radius of the earth. ∴ r = R + h.

What is a satellite derive expression for orbital velocity and period of revolution of satellite above the surface of Earth?

We get v = 7.92 kms-1, the velocity required by the satellite to revolve in an orbit just near the surface of the earth. Putting g = 9.8 ms-2 and R = 6.4 x 106 m in (iv), we get T = 84.6 minutes, that is the time period of a satellite revolving near the surface of the earth.

What is satellite derive an expression for the orbital velocity of an artificial satellite and hence derive its time period?

What is orbital velocity and derive expression?

Centripetal force is the force acting towards the centre of the circle it is provided by gravitational force between the planet and satellite. When h<V∘=√gR is called orbital velocity. Its value is 7.92 km/sec.

What is critical velocity in gravitation?

Critical velocity is the minimum velocity with which a mass has to travel to escape the gravitational pull of the other in whose respect it is in rest or motion… While, orbital velocity is the velocity by which the mass must travel in an elliptical path around its respective body…

What is the critical velocity of a satellite?

Critical Velocity of Satellite. The constant horizontal velocity given to the satellite so as to put it into stable circular orbit around the earth is called as critical velocity and is denoted by Vc. It is also known as orbital speed or proper speed

How do you calculate the linear velocity of a satellite?

V is the linear velocity of the satellite at a point on its circular track. Now, this r is the sum of the radius of the earth (R) and the height (h) of the satellite from the surface of the earth. V = [ (GM)/r]1/2 …………

What is the necessary centripetal force for the circular motion of satellite?

The necessary centripetal force for the circular motion of satellite is provided by the gravitational attraction between the satellite and the earth. This is the expression for the time period of a satellite orbiting around the earth at height h from the surface of the earth.

How do you find the radius of a satellite’s orbit?

The radius ’r’ of the orbit is r = R + h The necessary centripetal force for the circular motion of satellite is provided by the gravitational attraction between the satellite and the earth. This is the expression for the critical velocity of a satellite orbiting around the earth at height h from the surface of the earth.