Question

a sphere of mass 40 kg is placed at a distance of 0 .9 m from a sphere of 60 kg if the two sphere attract each other with the force of 0.196×10^-6. find the value of gravitational constant . given 1kgf =9.8
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Answer 1

Answer:

Distance (G)=20cm=0.2m

Mass (M1)=40kg    Mass (m2)=15kg

Force (F)=0.1 milligram wt

                  =0.1×10−3×980 dyne

                  =98×10−3 dyne

                  =98×10−8N

                  =9.8×10−9N

F=R2GM1M2

G=M1M2Fk2=40×159.8×10−7×0.2×0.2

                        =4×1598×2×2×10×10×10×1010−7

                        =6.5×10−11m2/kss

Explanation:

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