The minimum and maximum distances of a planet revolving around the Sun are $x_{1}$ and $x_{2}$. If the minimum speed of the planet on its trajectory is $v_o$ then its maximum speed will be
$\frac{v_{0} x_{2}^{2}}{x_{1}^{2}}$
$\frac{{u}_{0} {x}_{1}^{2}}{{x}_{2}^{2}}$
$\frac{{v}_{0} {x}_{2}}{{x}_{1}}$
$\frac{{v}_{0} {X}_{1}}{{x}_{2}}$
The force of gravitation is
The escape velocity for a body projected vertically upwards from the surface of earth is $11\, km/s$. If the body is projected at an angle of $45^o$ with the vertical, the escape velocity will be ........... $km/s$
Three identical bodies of equal mass $M$ each are moving along a circle of radius $R$ under the action of their mutual gravitational attraction. The speed of each body is
A particle is kept at rest at a distance $'R'$ from the surface of earth (of radius $R$). The minimum speed with which it should be projected so that it does not return 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 $\frac{a}{2}$ distance from the centre, will be