Embibe Experts Solutions for Chapter: Gravitation, Exercise 1: Exercise 1

According to Kepler's law, the time period of a satellite varies with its radius as

Ocean tides on the Earth are caused by the gravitational effects of the Moon (for lunar tides) as well as the Sun (for solar tides). If the diameter of the earth were to increase by $20\%$ then

A satellite can be in a geostationary orbit around a planet at a distance r from the centre of the planet. If the angular velocity of the planet about its axis doubles, a satellite can now be in a geostationary orbit around the planet if its distance from the centre of the planet is

At what altitude will the acceleration due to gravity be $25\%$ of that at the earth's surface (given radius of the earth is $\mathrm{R}$)

If a projectile has a velocity greater than the escape velocity, which trajectory will it follow?

A body is projected horizontal on the top of the Mount Everest with speed much greater than $\sqrt{2gr},$ where $r$ is the distance of the projection point from the centre of the earth and $g$ is the acceleration due to gravity there. The trajectory of the body will be a

A person jumps from the $5^{\text{th }}$ storey of a building with load on his head. The weight experienced by him before reaching the earth will be

The time period of a geostationary satellite is -