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]
13.05: At an instantzj,o42evj m bulda 3um9jo*)+ of time t, uo s+uc/.b. zha point object of mass M moves with velocity V, has acceleration a, and is at position (x,y). In what direction must the lis.u .bzh/+uco near momentum of the object be directed at this instant?
A. Along the direction of the velocity of the mass
B. Along the direction of the net force acting on the mass
C. Along the direction of the vector from the origin (0,0) to (x,y)
D. Along the direction of the acceleration of the mass
E. Along the direction perpendicular to the object’s acceleration
参考答案: A
本题详细解析:
暂无
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