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Question

Two spheres each of mass 70 kg are 0.14 m apart. Find the force of attraction between them.

Given G=6.67×10-11Nm2kg-2.


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Solution

Step 1: Given data

Given,

Massofboththespheres,M1=M2=70kgDistancebetweenboththespheres,R=0.14mG=6.67×10-11Nm2kg-2Forceofattraction,F=?

Step 2: Formula for gravitational force (attraction) between both the spheres

F=G×M1×M2R2

Step 3: Substituting the given values in the formula

F=6.67×10-11Nm2kg-2×70kg×70kg0.14m2=166.75×10-7N

Hence, the force between the two spheres will be 166.75×10-7N.


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