The escape velocity from the Earth is about 11.3 kilometers (7 miles) per second. This is approximately 17,000 mph (27,359 kph) at an altitude of 150 miles (242 kilometers). At an altitude of 124 miles (200 kilometers), the required orbital velocity is a little more than 17,000 mph (about 27,400 kph). Ans: The centripetal force necessary for the satellite's orbital motion is provided by the earth's gravitation force on the satellite. orbital velocity of an artificial satellite does not depend upon (a) mass of Earth (b) mass of satellite (c) radius of Earth asked Sep 15, 2020 in Gravitation by Ruksar02 ( 52.5k points) B. KEAM 2015: Orbital velocity of earth satellite does not depend on (A) mass of the earth (B) mass of the satellite (C) radius of the earth (D) accelera The time period of satellite does not depend on the radius of the orbit. Hence the satellite will revolve around the earth in an elliptical orbit. Orbital velocity is defined as the minimum velocity a body must maintain to stay in orbit. Now consider . Around the earth the value of orbital velocity is 7.92 km/sec . We know acceleration due to gravity. Venus. . The orbital velocity of a satellite increases with the radius of the orbit II. Answer (1 of 11): Only two variables, the distance to the center of the object it is orbiting (e.g. The geocentric-equatorial coordinate system is used for earth-orbiting satellites. . Tangential speed of the satellite; Earth's radius; Gravitational force of the earth. The orbital velocity is inversely proportional to the square root of the radius of the orbit. The satellite mass m cancels out from both sides and if you put M on one side and the rest on the other . If the distance increases the speed will decrease. The velocity with which a projectile must be fired so that it escapes the earth's gravitational field doesn't depend on _____ a) Mass of the earth b) Mass of the projectile c) Radius of the orbit d) Universal gravitational constant Answer: a Clarification: Escape velocity does not depend on the mass of the projectile. Question 2. Notice that we did not need to know the mass of the satellite to find the answer. Orbital velocity is defined as the minimum velocity a body must maintain to stay in orbit. Earth). Mercury. is swept out in time . 129. These equations describe how the position of massive objects under the influence of gravity change with time. D) The . (b) The escape velocity on the surface of Earth is greater than the escape velocity from moon's surface as moon has no atmosphere but Earth has. Answer:The mass of the satellite. Orbital velocity of earth's satellite near the surface is 7 km/s. No. Decrease. By definition, a geosynchronous satellite orbits the earth in a perfect circle, maintaining the same distance above the surface of the earth. C The orbital radius. If 2 satellites with radii r1 and r2 are orbiting in circular orbits, then the ratio of their velocities is v1/v2 = (r2/r1) (1/2) , where v1 and v2 are orbital velocities. When the radius of the orbit is 4 times than that of earth's radius, then orbital velocity in that orbit is [EAMCET (Engg.) It has its origin at the center of the earth. An "orbit" is just like falling with enough side-ways velocity that you keep "missing" the earth. (c) The angular momentum of a satellite going round the Earth remains conserved. Previous Year Papers Download Solved Question Papers Free for Offline Practice and view Solutions Online. Reason : Orbital velocity of a satellite, become independent of height of near satellite. A satellite that orbits directly above the equator has zero inclination. Orbital inclination is the angle between the plane of an orbit and the equator. A high-altitude satellite will require a greater orbital speed than a low-altitude satellite. This distance is the sum of the radius of the Earth and the distance from the space station to the surface: r = (6.38 x 10 6 m) + (400 km) The orbital velocity can be found using the formula: The orbital velocity of the International . The orbital velocity of a satellite increases with the radius of the orbit. The object's distance from the planet's center is also important. Objects passing Earth's orbit going faster than 42.1 km/s have achieved escape velocity and will be ejected from the Solar System if not slowed down by a gravitational interaction with a planet.Planets. The orbital velocity depends on the mass of the satellite Question 20 Choose the correct statement from the following : The radius of the orbit of a geostationary satellite depends upon 11. Io, a satellite of Jupiter, has an orbital period of 1.77 days and an orbital radius of 4.22 X 105 km. Yes, the speed of a satellite does depend on the mass of the Earth. Due to the inertia of the moving body, the body has a tendency to move on in a straight line. For a satellite revolving around the Earth, the orbital velocity of the satellite depends on its altitude above Earth. Geo Stationary satellites are commonly used for communication purpose. Time period of satellitewhere R + h = orbital radius of satellite, Me = mass of earth Thus, time period does not depend on the mass of the satellite. ; For the revolution of a satellite around the earth, the gravitational pull provides the required centripetal force. It only depends on the distance of the mass from the centre of the planet and the planet's mass. The time period of satellite does not depend on the radius of the orbit. The value of g, the escape velocity, and orbital velocity depend only upon the distance from the center of the planet, and not upon the mass of the object being acted upon. Notice that the orbital speed v (and therefore, the orbital period P) does not depend on the mass of the .
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