Why don't you feel a gravitational force from the text book you're reading?

Classical Dynamics of Particles and Systems
5th Edition
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Stephen T. Thornton, Jerry B. Marion
Chapter5: Gravitation
Section: Chapter Questions
Problem 5.6P: Compute directly the gravitational force on a unit mass at a point exterior to a homogeneous sphere...
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Why don't you feel a gravitational force from the text book you're reading? 

 

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according to newton law if gravitation 

every object exerts gravitational force on the other object 

if the mass of 1 object is m and other is M  and botb are separated by distance d 

then gravitational force b/w them is given by 

F = GmM/d2 

where 

G = univarsal gravitation const = 6.67 x 10-11  Nm2/kg2   

 

 

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