本题目来源于试卷: .Gravity..，类别为 美国物理杯赛(Physics Bowl)
[单选题]
98.24: A planet has a radius 4fv0ga98piv9ud r 5m0sxh+ txone-half that of Earth and a mass one-fifth nsp2hai z;q4pt 8. iqn2q( w4jr4yj bhc0q98rthe Earth’s mass. The gravitational acceleration at the surface of th4s 2az08ci4hqry9pt2jwh4qn; jr q bp8(i. nq e planet is most nearly
A. $4.0 m/s^{2}$
B. $8.0 m/s^{2}$
C. $12.5 m/s^{2}$
D. $25.0 m/s^{2}$
E. $62.5.0 m/s^{2}$
参考答案: B
本题详细解析:
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