本题目来源于试卷: Physics Unit2: Kinematics One Dimensional Motion,类别为 通用国际物理
[单选题]
If the velocity versus tk jr 3ivm:d(j+bcu 8 9ktone6:ime graph of an objecoqzbtm+n0i8:yt ,5tao 8i m.5ffv ps8t is a straight line making an angle of 30 degrees with the 85tonoft8sp+ti8 if ,a5 qbmy 0:vm.ztime axis, the object is
A. moving with constant non-zero speed.
B. moving with constant non-zero acceleration.
C. at rest.
D. moving with infinite speed.
参考答案: B
本题详细解析:
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