您所在的当前位置：高中物理试题 >

匀变速直线运动

> 如图所示，水平地面上的物体质量为1kg，在水平拉力F=2N的作用下从静止开始做匀加速直线运动，头2s 内物体的位移为3m 。则物体运动的加速度大小为 A．0.75m/s2 B．1.5m/s2 C．2.0m/s2 D．3.0m/s2

问题：

发布时间：2024-09-13

如图所示，水平地面上的物体质量为1kg，在水平拉力F=2N的作用下从静止开始做匀加速直线运动，头2s 内物体的位移为3m 。则物体运动的加速度大小为

A．0.75m/s² B．1.5m/s² C．2.0m/s² D．3.0m/s²

参考答案：

提问用户：M4***g9f

可能感兴趣的题目：

1 （30分）地图反映了人们认识世界的程度，地图的变化记录了人们认识世界的过程。随着地理信息技术的发展，出现了新的地图形式——数字地图。据下图，回答问题。与纸质地图相比，概括数字地图功能方面的特点。（10分）
2 属于埃及著名的古迹是 A.泰姬陵 B.吴哥窟 C.金字塔 D.凡尔赛宫
3 阅读流程图填空：（1）最后一次输出的i=______；（2）一共输出i的个数为______．
4 起固氮作用的化学反应是 A．氮气与氢气在一定条件下反应生成氨气 B．一氧化氮与氧气反应生成二氧化氮 C．氨气经催化氧化生成一氧化氮 D．由氨气制碳酸氢铵和硫酸铵
5 随着城市发展，城市郊区的农业结构将发生变化。下列土地利用类型在农业用地中的比重最可能降低的是(　　) A．稻田 B．鱼塘 C．果园 D．菜地花圃
6 在有风速为3m/s的东风的天气中，某同学以3m/s的速度向西跑，他的感觉将是 A.无风 B.有东风，风速比他不跑时更大 C.有东风，风速比他不跑时小些 D.有西风，风速比他不跑时更大
7 国民生产总值不低，但其主要经济来源于石油出口，国内的其它工业部门并不发达，这样的国家是 A.美国 B.中国 C.沙特阿拉伯 D.新加坡
8 She seldom needs help with her work, _______she? A.doesn’t B.needn’t C.does D.need
9 完形填空。 I was sitting in the surgical waiting area at the hospital waiting for the news of my wife"s operation. The small room was filled with other families and friends who were eagerly waiting to hear how their loved ones were doing. There was a young boy sitting quietly in the 1 . He held a small box of 2 in one hand and tablet [写字板] in the other. So often he would place the tablet on his lap and draw something. As the hour passed I began to see the room almost 3 . And there was a strange silence. "Daddy, when is Mommy going home?" the young boy asked, breaking the silence . "Tomorrow," his father replied. The boy picked up his crayons [蜡笔] and 4 some-thing on the tablet. I 5 him as he moved his feet back and forth, looking up at the ceiling and then toward the sunshine-filled window. "When is tomorrow , Daddy?" he asked. His father 6 him over to sit by him. "Come, 7 here next to me," he said with a gentle tone in his voice. 8 his things, the little boy walked slowly to his father"s side from the corner. The man 9 out and held his son by the shoulders. "There are three days in life. Yesterday, today and tomorrow. One is over and done, one that we live in, the other we expect. We can"t live in yesterday, but if we are happy enough today, we will be even happier tomorrow," he said in an attempt to 10 the boy. The little boy looked at him for a moment and said, "If Mommy is going home tomorrow, I"ll be happier. So, I want it to be tomorrow already, Daddy." Now listening to every word of this 11 carefully, I leaned forward to hear his response. It was 12 . "Son, the one great thing about today is once it 13 , it is already almost tomorrow." I thought about how 14 it was. Even in my adult life, I still live waiting for what tomorrow may 15 . Now I know that it is already "almost tomorrow." ( )1. A. chair ( )2. A. gifts ( )3. A. dark ( )4. A. wrote ( )5. A. followed ( )6. A. knocked ( )7. A. stand ( )8. A. Gathering ( )9. A. got ( )10. A. frighten ( )11. A. story ( )12. A. humorous ( )13. A. ends ( )14. A. meaningful ( )15. A. happen B. corner B. toys B. full B. drew B. found B. ordered B. sit B. Forgetting B. took B. satisfy B. argument B. silly B. starts B. important B. come C. distance C. chalks C. empty C. printed C. watched C. called C. lie C. Saving C. set C. persuade C. conversation C. positive C. passes C. interesting C. bring D. shadow D. crayons D. clean D. carved D. caught D. pulled D. sleep D. Choosing D. reached D. warn D. discussion D. perfect D. lasts D.fantastic D. need
10 It wasn’t until nearly a month later ____ I received the manager’s reply. A．since B．when C．as D．that