A particle is projected from the surface of a non-rotating planet of radius R with escape velocity. Neglecting atmospheric resistance, which of the following best describes the path of the particle?
Straight line
Circle
Ellipse
Parabola
Related Questions
The mass of planet mars is th of the mass of earth and radius is of the radius of earth. If the escape velocity at the earth is , then the escape velocity at Mars will be
2.2 km/s
5.0 km/s
7.1 km/s
11.2 km/s
The escape velocity of a body from the earthβs surface is . The escape velocity of the same body from a height equal to 7R from the earthβs surface will be
Gravitational force between two point masses is found to be F when both are in vacuum. If both the masses are immersed in water, new gravitational force will be
Greater than F
Less than F
F
Information insufficient
The escape velocity on a planet is . If the radius of the planet contracts to the present value without any change in its mass, then the escape velocity becomes
On which quantity the escape velocity for earth does not depend on
mass of the earth
mass of the projectile
point of projection relative to the earth
gravitational constant
The escape velocity of a body projected from the surface of earth is . If the body is projected at an angle to the horizontal surface of earth, then the escape velocity would be
The escape velocity from the Earth's surface is . The escape velocity from the surface of another planet having a radius four times that of Earth and the same mass density is:
v
4v
2v
0.5v
A planet has a mean density one-fourth that of Earth and a radius twice that of Earth. What is the escape velocity from this planet if the escape velocity from Earth is ?
v_e
2v_e
v_e/2
v_e/4
Planet X has a radius four times that of Earth and a mean density half that of Earth. Determine the ratio of the escape velocity from Earth () to the escape velocity from Planet X ().
1/2β2
1/4
1/β2
β2