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Answer the following question. On which factors does the escape speed of a body from the surface of Earth depend? - Physics

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प्रश्न

Answer the following question.

On which factors does the escape speed of a body from the surface of Earth depend?

एका वाक्यात उत्तर

उत्तर

The escape speed depends only on the mass and radius of the planet.

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Gravitational Potential and Potential Energy
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 5: Gravitation - Exercises [पृष्ठ ९७]

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बालभारती Physics [English] 11 Standard Maharashtra State Board
पाठ 5 Gravitation
Exercises | Q 2. (ix) | पृष्ठ ९७

संबंधित प्रश्‍न

Define the escape velocity of a satellite.


Answer the following question in detail.

If the Earth were made of wood, the mass of wooden Earth would have been 10% as much as it is now (without change in its diameter). Calculate escape speed from the surface of this Earth.


A body is thrown from the surface of the earth velocity v `"m"/"s"`. The maximum height above the earth's surface upto which it will reach is ____________.

(R = radius of earth, g = acceleration due to gravity)


Earth has mass M1 and radius R1. Moon has mass M2 and radius R2. Distance between their centre is r. A body of mass M is placed on the line joining them at a distance `"r"/3` from centre of the earth. To project the mass M to escape to infinity, the minimum speed required is ______.


A body is projected vertically from the surface of the earth of radius 'R' with velocity equal to half of the escape velocity. The maximum height reached by the body is ______.


The escape velocity from earth is 11.2 km. Another planet is having mass 1000 times and radius 10 times that of earth, then escape velocity at that planet will be ____________.


A hole is drilled half way to the centre of the earth. A body weighs 300 N on the surface of the earth. How much will, it weigh at the bottom of the hole?


A body is projected vertically upwards from earth's surface with velocity 2ve where ve is escape velocity from earth's surface. The velocity when body escapes the gravitational pull is ______.


The gravitational potential energy of a rocket of mass 200 kg at a distance 106 m from the centre of the earth is 3 × 108 J. The weight of the rocket at a distance 108 m from the centre of the earth is ______.


What should be the velocity of earth due to rotation about its own axis so that the weight at equator becomes `(3/5)^"th"` of initial value?

(Radius of earth on equator = 6400 km, `g=10m/s^2,cos0^circ=1`)


A body is projected vertically upwards from earth's surface. If velocity of projection is `(1/3)^"rd"` of escape velocity, then the height upto which a body rises is ______.

(R =radius of earth)


Four spheres each of mass m form a square of side d (as shown in figure). A fifth sphere of mass M is situated at the centre of square. The total gravitational potential energy of the system is ______.


A particle of mass M is situated at the centre of a spherical shell of same mass and radius a. The gravitational potential at a point situated at `"a"/2` distance from the centre, will be ______.


A planet in a distant solar system is 10 times more massive than the earth and its radius is 10 times smaller. Given that the escape velocity from the earth's surface is 11 km s-1 , the escape velocity from the surface of the planet would be ______. 


Two particles of masses m and 9m are separated by a distance r. At a point on the line joining them the gravitational field is zero. The gravitational potential at that point is ______.

( G = universal constant of gravitation)


The escape velocity on the surface of the earth is 11.2 kms-1. If mass and radius of a planet is 4 and 2 times of the earth respectively, then what is the escape velocity from the planet?


The ratio of the radii of the planets P1​ and P2​ is k. The ratio of acceleration due to gravity is r. The ratio of the escape velocities from them will be ______.


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