Impulse and momentum (id: 0a494e6d3)

本题目来源于试卷: Impulse and momentum，类别为 美国物理杯赛(Physics Bowl)

[单选题]
17.27: A 2.0 kg mass moves xuaku+z030he2 t au8ahql koes4;r-5at 10.0 m/s when it has a coxbjm hv0576gp llision in space. The mass’sv6j50hmgx7p b speed was unchanged, but the direction of its velocity was altered by $80^{\circ}$. If the collision lasted 0.25 s, what was the magnitude of the average force exerted on the mass?

A. 0 N
B. 54.7 N
C. 102.8 N
D. 122.5 N
E. 150.3 N


参考答案:  C


本题详细解析: 暂无

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