1.59 x 10-14 N
2.80 x 10-7 N
1.30 x 10-2 N
6.30 x 1013 N
Correct answer is B
F = \frac{GM_1M_}{r^2}
= \6.67 \times 10^{-11} \times 70 \times 60}{1^2}
= 2.8014 x 10-7 N
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