您所在的当前位置：高中物理试题 >

匀变速直线运动

> 做匀加速直线运动的质点，在第5 s末的速度为10 m/s，则　　 A．前10 s内位移一定是100 m B．前10 s内位移不一定是100 m C．加速度一定是2 m/s2 D．第10秒末速度为20 m/s

问题：

发布时间：2024-09-09

做匀加速直线运动的质点，在第5 s末的速度为10 m/s，则　　

A．前10 s内位移一定是100 m

B．前10 s内位移不一定是100 m

C．加速度一定是2 m/s²

D．第10秒末速度为20 m/s

参考答案：

提问用户：on***4l7

可能感兴趣的题目：

1 The teacher insisted that I ____ a mistake and insisted that I ____ the physics problem again. A．made; did B．made; do C．make; do D．make; did
2 阅读理解。 The teacher who did the most to encourage me was, as it happened, my aunt. She was Myrtle C. Manigault, the wife of my mother"s brother Bill. She taught in second grade at all-black Summer School in Camden, New Jersey. During my childhood and youth, Aunt Myrtle encouraged me to develop every aspect of my potential, without regard for what was considered practical or possible for black females. I liked to sing; she listened to my voice and pronounced it good. I couldn"t dance; she taught me the basic dancing steps. She took me to the theatre - not just children"s theatre but adult comedies and dramas - and her faith that I could appreciate adult plays was not disappointed. My aunt also took down books from her extensive library and shared them with me. I had books at home, but they were all serious classics. Even as a child I had a strong liking for humor, and I"ll never forget the joy of discovering Don Marquis"s Archy & Mehitabel through her. Most important, perhaps, Aunt Myrtle provided my first opportunity to write for publication. A writer herself for one of the black newspapers, she suggested my name to the editor as a "youth columnist". My column, begun when I was fourteen, was supposed to cover teenage social activities - and it did-but it also gave me the freedom to write on many other subjects as well as the habit of gathering material, the discipline of meeting deadlines, and, after graduation from college six years later, a solid collection of published material that carried my name and was my passport to a series of writing jobs. Today Aunt Myrtle is still an enthusiastic supporter of her "favorite niece". Like a diamond, she has reflected a bright, multifaceted (多面的) image of possibilities to every pupil who has crossed her path. 1. Which of the following did Aunt Myrtle do to the author during her childhood and youth? A. She lent her some serious classics. B. She developed her taste for music. C. She introduced her to adult plays. D. She discovered her talent for dancing. 2. What does Archy and Mehitabel in Paragraph 3 probably refer to? A. A writer of high fame. B. A book of great fun. C. A serious masterpiece. D. A heartbreaking play. 3. Aunt Myrtle recommended the author to a newspaper editor mainly to ______. A. give her a chance to collect material B. develop her capabilities for writing C. involve her in teenage social activities D. offer her a series of writing jobs 4. We can conclude from the passage that Aunt Myrtle was a teacher who _______. A. gave pupils confidence in developing their potential B. I trained pupils to be diligent and well-disciplined C. emphasized what was practical or possible for pupils. D. helped pupils overcome difficulties in learning
3 如图所示的电路中，电源电压保持不变．闭合开关S，调节滑动变阻器的滑片，电压表V 1的示数U 1与电流表的示数I及电压表V 2的示数U 2与电流表的示数I的变化关系图象中，正确的是 A.. B. C. D.
4 关于次氯酸性质的描述，错误的是 A．不稳定，易分解放出氧气 B．能使潮湿的有色布条褪色 C．是一种很强的氧化剂 D．是一种比碳酸酸性强的酸
5 世界陆地上最长的裂谷带分布在 A.非洲东部 B.非洲西部 C.非洲南部 D.非洲北部
6 You can hardly see anything in the dark room, _____? A.can’t B.can you C.can’t we D.can we
7 常温下，下列各组离子在指定溶液中能大量共存的是（　　） A．pH=1的溶液中：NH+4、Na+、I-、NO-3 B．由水电离的c（H+）=1×10-14mol/L的溶液中：Ca2+、K+、Cl-、HCO3- C．能使甲基橙变红的溶液中：NH4+、Al3+、NO3-、Cl- D．c（Fe3+）=0.1mol/L的溶液中：K+、ClO-、SO42-、SCN-
8 ---- Do you know _______ they got to know each other? ---- It was last year_______ they both taught Chinese in Scotland. A．When it was that, when B．when it was that, while C．When it was that, that D．When it was that, as
9 如图表示的算法结构是______结构．
10 已知点不在同一条直线上，点为该平面上一点，且，则（） A．点在线段上 B．点在线段的反向延长线上 C．点在线段的延长线上 D．点不在直线上

做匀加速直线运动的质点，在第5 s末的速度为10 m/s，则 A．前10 s内位移一定是100 m B．前10 s内位移不一定是100 m C．加速度一定是2 m/s2 D．第10秒末速度为20 m/s

可能感兴趣的题目：

做匀加速直线运动的质点，在第5 s末的速度为10 m/s，则　　

A．前10 s内位移一定是100 m

B．前10 s内位移不一定是100 m

C．加速度一定是2 m/s²

D．第10秒末速度为20 m/s