Question

At what height gravity is zero?

Answer 1

1. Gravity can never become zero except maybe at infinity.
2. As we move away from the surface of the Earth the gravitational force becomes weaker but it will never become zero.
3. The gravitational force is inversely proportional to$r^2$.
4. Here, $r$is the distance of the point from the surface of the Earth.
5. Gravitational force formula , $F=G\frac{(m_1\times m_2)}{r^2}$ where, $F$is the gravitational force between two bodies, $m_1$ is the mass of the first body,$m_2$ is the mass of the second body ,$r$ is the distance between the centres of two bodies
6. Hence, gravity can never be zero except infinity.