本题目来源于试卷: Physics Unit7: Linear Momentum，类别为 通用国际物理
[单选题]
A 4.0-N force acts for 3.0 s on an object.7-:j5wg ddgu kr 2unv3 The force suddenly increv nlqfe00w wn1t gy5w d-i52k:ases to 15 N and acts for one more second. What imq0v0n e-kw:1gy ln 2t fd5w5wipulse was imparted by these forces to the object?
A. $12 \; N \cdot s$
B. $15 \; N \cdot s$
C. $19 \; N \cdot s$
D. $27 \; N \cdot s$
参考答案: D
本题详细解析:
暂无
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