Mass is placed at the origin of an -axis

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Mass M1=2000 gM_1=2000\,\text{g} is placed at the origin of an xx-axis, and mass M2=500 gM_2=500\,\text{g} is kept on the same axis at x=0.20 mx=0.20\,\text{m}. Find the gravitational force acting on M2M_2 (give both magnitude and direction along the xx-axis). Take G=6.67×10−11 N m2kg−2G=6.67\times10^{-11}\,\text{N\,m}^2\text{kg}^{-2}. (a) 1.67×10−9 N1.67\times10^{-9}\,\text{N} toward +x+x direction (b) 3.34×10−10 N3.34\times10^{-10}\,\text{N} toward −x-x direction (c) 1.67×10−9 N1.67\times10^{-9}\,\text{N} toward −x-x direction (d) 4.17×10−10 N4.17\times10^{-10}\,\text{N} toward −x-x direction

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