本题目来源于试卷: Work Energy and Power，类别为 美国物理杯赛(Physics Bowl)
[单选题]
11.28: A person throws an g k )wt3f.msy ae5j4p;sdo:1i object of mass M straigh) )y eed,k pdsrru0tn6ot. +(ot upward with an initial non-zero speed v. The object rises to a maximum height H above the launch point. The person now throws an object of mass 0.5M straight upward with initial speed 2v. In terms of H, to what maximum height doe(ttr))6n,de+ . kydos roeup0s the object of mass 0.5M rise above the launch point? Ignore air resistance.
A. $8H$
B. $4H$
C. $2H$
D. $1.414H$
E. $H$
参考答案: B
本题详细解析:
暂无
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