what happens, if the value of g becomes twice it's value

• why the value of g is zero at the center of earth?
• the acceleration due to gravity  (g) on the earth's surface is given as, the value of g depends on the mass M of the earth and the radius R of the earth.
• as we go inside the earth, our distance from the centre of the earth decreases and no longer remains equal to the radius of the earth (R).
• along -with the distance, the part of the earth which contributes towards the gravitational force felt also decreases, decreasing the value of (M).
• due to the combined result of a change in R and M, the value of g becomes zero at the center of the earth.

           what happens, if the value of g becomes twice its value 

• the weight of an object is defined as the force with which the force attracts the object. it is given as W=F=mg
• the weight of an object depends on the mass of the object and the value of acceleration due to gravity.
• if the value of g doubles,the force with which the earth attracts the object also becomes twice.
• thus,the object becomes twice as heavier, making it harder to be pulled along the floor.

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