H2P-523

Field strength of a point mass

H2 Physics · JC 2 · Medium · Field strength of a point mass

Two identical point masses of 20 kg are placed 0.40 m apart in vacuum. What is the magnitude of the gravitational field strength at the midpoint between them? (Take

G = 6.7\times10^{-11}\,\text{N m}^{2}\text{kg}^{-2}

0 N kg $^{-1}$
3.4 × 10 $^{-8}$ N kg $^{-1}$
6.7 × 10 $^{-8}$ N kg $^{-1}$
1.3 × 10 $^{-7}$ N kg $^{-1}$

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