Embibe Experts Solutions for Chapter: Gravitation, Exercise 1: AP EAPCET Medical 2021 (6-Sep Forenoon)

Two bodies of masses $2 \mathrm{kg}$ and $4 \mathrm{kg}$ separated by a distance of $200 \mathrm{cm}$ are approaching towards each other due to their mutual gravitational force only. After $2 \mathrm{s}$ of their start, the separation decreases by nearly

A satellite of the earth is revolving in a circular orbit with uniform speed $\text{'}v\text{'}.$ If the gravitational force suddenly disappears, the satellite will ________

At a distance $320 \mathrm{km}$ above the surface of the earth. the value of acceleration due to gravity will be lower than its value on the surface of the earth by nearly________ (earths radius $=6400 \mathrm{km}$ )

A body weighs $900 \mathrm{gm}.$ wt on the surface of the earth. Its weight on the surface of a planet whose mass is $\frac{1}{8}$^th of that of the earth and radius is half that of the earth, is

A planet is revolving round the sun of mass $M$ in an elliptical orbit with semi-major axis $a$. The speed of the planet when it is at a distance $r$ from the sun is, ($G$ - Universal gravitational constant)

Two objects of masses $4\times {10}^{36} \mathrm{kg}$ and $9\times {10}^{36} \mathrm{kg}$ are placed ${10}^{10} \mathrm{m}$ apart. The gravitational potential at the point of zero gravitational field, created by these objects is________
$\left[G=6.67\times {10}^{-11} \mathrm{N} {\mathrm{m}}^2 {\mathrm{kg}}^{-2}\right]$

If the moon is to escape from the gravitational field of the earth forever, it will require a velocity ___ .

Identify the correct expression between radius $\left(R\right),$ density $\left(\rho \right)$ and the escape velocity from the surface $\left(v_e\right)$ of a planet.