Physics

Physics

Problem

Two point masses 6 kg6\,\text{kg} and 24 kg24\,\text{kg} are fixed 12 m12\,\text{m} apart. Take G=6.67×10−11 N m2kg−2G = 6.67\times10^{-11}\,\text{N m}^2\text{kg}^{-2}. What is the gravitational potential per unit mass at the null point between them? a) +3.0×10−10 J kg−1+3.0\times10^{-10}\,\text{J kg}^{-1} b) −3.0×10−10 J kg−1-3.0\times10^{-10}\,\text{J kg}^{-1} c) −4.5×10−10 J kg−1-4.5\times10^{-10}\,\text{J kg}^{-1} d) −2.0×10−10 J kg−1-2.0\times10^{-10}\,\text{J kg}^{-1}

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