您所在的当前位置：高中物理试题 >

匀变速直线运动

> 汽车以36 km/h的速度匀速行驶． (1)若汽车以0.5 m/s 2的加速度加速，则10 s后速度能达到多少？ (2)若汽车刹车以0.5 m/s 2的加速度减速，则10 s后速度减为多少？位移为多少？ (3)若汽车刹车以2 m/s 2的加速度减速，则10 s后速度为多少？位移为多少？

问题：

发布时间：2024-09-08

汽车以36 km/h的速度匀速行驶．
(1)若汽车以0.5 m/s ²的加速度加速，则10 s后速度能达到多少？
(2)若汽车刹车以0.5 m/s ²的加速度减速，则10 s后速度减为多少？位移为多少？
(3)若汽车刹车以2 m/s ²的加速度减速，则10 s后速度为多少？位移为多少？

参考答案：

提问用户：K3***ovg

可能感兴趣的题目：

1 阅读理解。 Born in London in 1815, Ada Lovelace was the daughter of Annabella Millbanke and the British poet Lord Byron. Her parents separated just a month after she was born. Less than a year later, Lord Byron went abroad and never returned ( he died in Greece in 1824). Ada never knew her father and was raised by her mother. Her mother had mathematical training and insisted that Ada, who was educated privately, study mathematics too. Ada did well not only in mathematics and science, but also in music and PE. In 1833, Ada met Charles Babbage, a famous English mathematician. He was known as the inventor of a calculating machine called the Difference Engine. They became good friends and began to write to each other on the topics of mathematics, logic, and many other subjects. Babbage had made plans in 1834 for a new kind of calculating machine ( although the Difference Engine was not finished),an Analytical Engine. Few people in England would support him with his first machine unfinished. But he found support for his new calculating machine abroad. In 1842, an Italian mathematician, Louis Menabrea, published a paper in French on the subject of the Analytical Engine. Babbage asked Ada to translate the paper. When she showed Babbage her translation he suggested that she add her own notes, which turned out to be three times as long as Menabrea" s. The notes are the source of her enduring fame (不朽的声誉 ). In her notes, Ada predicted (预言 )that such a machine might be used to write music, to draw pictures, and would be used for both practical and scientific use. She was correct. After she wrote the description of Babbage" s Analytical Engine,her life was plagued (折磨) with illnesses. In 1852, she died of cancer and was buried beside her father at Newstead Abbey in Nottinghamshire, England. In 1980, 165 years after Ada" s birth, the US Defense Department announced a powerful new computer language. They named it Ada in honor of Ada Lovelace" s important role in the history of computing. 1. It seemed that Ada" s mother _____. A. had little money to educate Ada at home B. wanted Ada to be a great musician C. didn"t wish Ada to be a poet like her father D. didn"t think Ada was a clever girl 2. Babbage didn" t find support for his Analytical Engine in Britain because _____. A. his first calculating machine was not finished B. no one thought the machine would be useful C. he had moved to Italy and settled there D. most of his inventions proved useless 3. Menabrea" s paper on Babbage" s Analytical Engine was written in _____. A. English B. Italian C. German D. French 4. What do we learn about Ada from the passage? A. She was remembered as a great translator. B. Her predictions have come true. C. Her notes were written in computer language. D. She led a long and fruitful life.
2 下列离子在溶液中因发生氧化还原反应而不能大量共存的是 [ ] A．H 3O +、HO 3 -、Fe 2+、Na + B．Ag +、NO 3 -、Cl -、K + C．K +、Ba 2+、OH -、SO 4 2- D．Cu 2+、NH 4 +、Br -、OH -
3 The building whose gate is _____ stands ______ to my school. A．open; closely B．opened; closely C．open; close D．close; closely
4 如图所示的小磁针N极（黑色的那一端）的指向，其中错误的是 A.a B.b C.c D.d
5 图为我国某农作物主要产区分布图。读图完成下列各题。小题1:该农作物最可能是（） A．棉花 B．水稻 C．辣椒 D．甘蔗小题2:四川省该农作物产量大的主要因素是（） A．市场 B．交通 C．地形 D．气候
6 在△ABC中，| AB |=3，| AC |=4，| BC |=5，则 AB • BC + BC • CA + CA • AB 的值是（　　） A．25 B．-25 C．7 D．-7
7 解方程：3cos 2x-8cosx+4=0．
8 Where was it ______ you _______ our maths teacher? A．where; came to B．that; come across, C．that; came across D．where; come to
9 以下物质不符合既可以通过单质化合又可以通过溶液间复分解反应两种方法得到的是 A．FeCl2 B．NaCl C．CuCl2 D．FeCl3
10 My daughter will _____ you one day only if you keep ______ like this. A．receive; performing B．accept; performing C．receive; to perform D．accept; performed