Question Answers

Sahay Sir > Question Answers > MTG NEET Physics > Part 1 > Chapter 10 - Gravitation > A planet of radius R=1/10× (radius of Earth) has the same mass density as Earth. Scientists dig a well of depth R/5 on it and lower a wire of the same length and of linear mass density 10^−3kgm^-1 into it. If the wire is not touching anywhere, the force applied at the top of the wire by a person holding it in place is (take the radius of Earth =6×10^6m and the acceleration due to gravity on Earth is 10ms^−2)

A planet of radius R=1/10× (radius of Earth) has the same mass density as Earth. Scientists dig a well of depth R/5 on it and lower a wire of the same length and of linear mass density 10^−3kgm^-1 into it. If the wire is not touching anywhere, the force applied at the top of the wire by a person holding it in place is (take the radius of Earth =6×10^6m and the acceleration due to gravity on Earth is 10ms^−2)

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)