In case of earth

Assertion : A particle is projected upwards with speed upsilon and it goes to a heigth h . If we double the speed then it will move to height 4h . Reason : In case of earth, acceleration due to gravity g varies as g prop(1)/(r^(2)) (for r ge R )

Assertion : A particle is projected upwards with speed upsilon and it goes to a heigth h . If we double the speed then it will move to height 4h . Reason : In case of earth, acceleration due to gravity g varies as g prop(1)/(r^(2)) (for r ge R )

What is meant by escape speed in the case of the Earth?

What provides the centripetal force in the following cases earth revolving around the sun

A satellite having mass much smaller than the mass of earth is revolving in an elliptical orbit around the earth. In this case

In case of second's pendulum, match the following (consider shape of earth also)