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]
06.19: A 60.0-kgball of clay is tossed t,jw o4 azh4z9qwg0:b vertically in the air with an initi f+w;vyji)vzn 6zn qe; cs5b68+* 6hjdud e/hnal speed of 4.60 m/s. Ignoring air resistance, what is d5wqey6/d cj; vn f+ s6*nhjnvu)z h;+ zbi8e6the change in its potential energy when it reaches its highest point?
A. 0J
B. 45J
C. 280J
D. 635J
E. 2700J
参考答案: D
本题详细解析:
暂无
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