Part 1
A saturn year is 29.5 times the earth year. How far is the saturn from the sun if the earth is 1.5 × 10^8 km away from the sun ?
22
Sep
A saturn year is 29.5 times the earth year. How far is the saturn from the sun if the earth is 1.5 × 10^8 km away from the sun ? A saturn year is 29.5 times the earth year. How far is the saturn from the sun if the earth is 1.5 × 10^8 km [...]
A satellite is in a circular orbit close to the surface of a planet. At some point it is given an impulse along the direction of motion, causing its velocity to lncrease n times. It now goes into an elliptical orbit. The maximum possible value of n for this to occur is
22
Sep
A satellite is in a circular orbit close to the surface of a planet. At some point it is given an impulse along the direction of motion, causing its velocity to lncrease n times. It now goes into an elliptical orbit. The maximum possible value of n for this to occur is A satellite is [...]
Two identical satellites A and B revolve around the earth in circular orbits at distance R and 3R from the surface of the earth. The ratio of the linear momenta of A and B is (R= radius of the earth)
22
Sep
Two identical satellites A and B revolve around the earth in circular orbits at distance R and 3R from the surface of the earth. The ratio of the linear momenta of A and B is (R= radius of the earth) Two identical satellites A and B revolve around the earth in circular orbits at distance [...]
Two satellite of mass m and 9m are orbiting a planet in a circular orbits of radius R. Their periods of revolution will be in the ratio of
22
Sep
Two satellite of mass m and 9m are orbiting a planet in a circular orbits of radius R. Their periods of revolution will be in the ratio of Two satellite of mass m and 9m are orbiting a planet in a circular orbits of radius R. Their periods of revolution will be in the ratio [...]
Assuming density d of a planet to be uniform, we can say that the time period of its artificial satellite is proportional to
22
Sep
Assuming density d of a planet to be uniform, we can say that the time period of its artificial satellite is proportional to Assuming density d of a planet to be uniform we can say that the time period of its artificial satellite is proportional to September 22, 2020 Category: Chapter 10 - Gravitation , [...]
If the escape velocity of a planet is 3 times that of the Earth and its radius is 4 times that of the Earth, then the mass of the planet is ( mass of the earth = 6 x 10^24 kg )
22
Sep
If the escape velocity of a planet is 3 times that of the Earth and its radius is 4 times that of the Earth, then the mass of the planet is ( mass of the earth = 6 x 10^24 kg ) If the escape velocity of a planet is 3 times that of the [...]
A body is released from a point distance r from the centre of earth. If R is the radius of the earth and r>R, then the velocity of the body at the time of striking the earth will be
22
Sep
A body is released from a point distance r from the centre of earth. If R is the radius of the earth and r>R, then the velocity of the body at the time of striking the earth will be A body is released from a point distance r from the centre of earth. If R [...]
A particle of mass ‘m’ is kept at rest at a height 3 R from the surface of earth, where ‘R’ is radius of earth and ‘M’ is mass of earth. The minimum speed with which it should be projected, so that it does not return back, is (g is acceleration due to gravity on the surface of earth)
22
Sep
A particle of mass ‘m’ is kept at rest at a height 3 R from the surface of earth, where ‘R’ is radius of earth and ‘M’ is mass of earth. The minimum speed with which it should be projected, so that it does not return back, is (g is acceleration due to gravity on [...]
The radius in kilometers, to which the present radius of the earth (R =6400 km) is to be compressed so that the escape velocity is increased ten times is
22
Sep
The radius in kilometers, to which the present radius of the earth (R =6400 km) is to be compressed so that the escape velocity is increased ten times is The radius in kilometers to which the present radius of the earth (R =6400 km) is to be compressed so that the escape velocity is increased [...]
Two balls A and B are thrown vertically upwards from the same location on the surface of the earth with velocities 2gR/3‾‾‾‾‾√ and 2gR/3‾‾‾‾‾‾√ respectively, where R is the radius of the earth and g is the acceleration due to gravity on the surface of the earth. The ratio of the maximum height attained by A to that attained by B is
22
Sep
Two balls A and B are thrown vertically upwards from the same location on the surface of the earth with velocities 2gR/3‾‾‾‾‾√ and 2gR/3‾‾‾‾‾‾√ respectively, where R is the radius of the earth and g is the acceleration due to gravity on the surface of the earth. The ratio of the maximum height attained by [...]
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Two balls A and B are thrown vertically upwards from the same location on the surface of the earth with velocities 2gR/3‾‾‾‾‾√ and 2gR/3‾‾‾‾‾‾√ respectively ,
where R is the radius of the earth and g is the acceleration due to gravity on the surface of the earth. The ratio of the maximum height attained by A to that attained by B is ,