Two identical spheres each of mass M and radius R are separated by a distance 10R. The gravitational force on mass placed at the midpoint of the line joining the centers of the spheres is
A
Zero
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
The situation is as shown in the figure.
Let P is the midpoint of the line joining the centers of the spheres.
The gravitational force on mass m due to sphere A is
The gravitational forces on mass m due to sphere B is
Net force on mass m is
( 
and 
are opposite in directions)
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