what is the value of acceleration due to gravity under free fall on a planet , which has radius twice the earth and has same mass
Answers
At the surface of the Earth, the acceleration due to gravity is roughly 9.8 m/s2. The average distance to the centre of the Earth is 6371 km. Using the constant k, we can work out gravitational acceleration at a certain altitude. Example: Find the acceleration due to gravity 1000 km above Earth's surface.
Answer: Acceleration due to the earth's gravity is zero at the centre of the Earth because at that point the mass of the earth is equally distributed in all directions, so pulling equally in all directions for a net zero pull. ... At the centre the distance is zero, hence gravity is zero.
The acceleration which is gained by an object because of the gravitational force is called its acceleration due to gravity. Its SI unit is m/s2. Acceleration due to gravity is a vector, which means it has both a magnitude and a direction. The acceleration due to gravity at the surface of Earth is represented as g. It has a standard value defined as 9.80665 m/s2.