Question

Calculate the force of attraction between the earth and an object of mass 1 kg on its surface. Radius of earth = 6400 km

Answer 1

Answer:If the object's mass is m,then the force of attraction on the object is mg where g is gravitational acceleration and its value is 9.8 m/s². So here the force of attraction on 1 kg mass is 1×9.8=9.8N (or u can use it's approximate value 10N).

Explanation:

Answer 2

simply use the formula

f=Gm×M/r^2

here G is the gravitational constant

f=6.67×10^11×6×10^24/6400×6400

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