题目【题目】A particle is projected from a point which is 2 m above ground level with avelocity of 40ms-' at an angle of 45" to the horizontal. Find its horizontaldistance from the point of projection when it hits the ground.y44020245202 相关知识点: ...
Q5 A particle is projected from the ground at some angle to the horizontal. (Assuming point of projection to be the origin and the horizontal and vertical directions to be the x & y-axis) the particle passes through the points(3,4)and(4,3)during its motion then the range of ...
结果1 题目 A particle is projected in a straight line from a point O. After t seconds its displacement, s metres, from O is given by s = 3t2 - t3.Find the times when the body is instantaneously at rest. 相关知识点: 试题来源: 解析 t = 0, 1s t=2;4s 反馈 收藏 ...
doi:10.1080/14786442508634728JamesRobertson M.A. B.Sc.Taylor & Francis GroupPhilosophical Magazine
1 A particle is projected with speed 17ms- at an angle of 50 above the horizontal from a point on horizontal ground. Calculate the speed of the particle 2 s after the instant of projection.[3] 相关知识点: 试题来源: 解析 17sin50-2g v2= (17 sin 50 - 2 g)2 +(17 cos 50)2 v ...
The number of marks is given in brackets[]at the end of each question or part question.The use of a calculator is expected,where appropriate.Results obtained solely from a graphic calculator,without supporting working or reasoning,will not receive credit.Y ou are reminded of the need for clear...
答案 一个粒子投影垂直向上的速度24.5m S-1.找到它的总时间是2100万以上的点的投影 相关推荐 1 大神们我快哭了!帮帮 求求!呜呜呜.. A particle is projected vertically upwards with speed 24.5m s-1 .Find the total time for which it is 21m or more above its point of projection 反馈 收藏 ...
大神们我快哭了!帮帮 求求!呜呜呜..A particle is projected vertically upwards with speed 24.5m s-1 .Find the total time for which it is 21m or more above its point of projection 答案 一个粒子投影垂直向上的速度24.5m S-1.找到它的总时间是2100万以上的点的投影相关推荐 1大神们我快哭了!帮...
4. A small stone is projected vertically upwards from the point O and moves freely under gravity. The point A is 3.6 m vertically above O. When the stone first reaches A, the stone is moving upwards with speed 11.2 m s-1. The stone is modelled as a particle.(a)Find the maximum hei...
A 2-kg particle is projected from a table of height 3 m, with a speed 5 m/s. What is the mechanical energy of the particle as it drops down to the height 2 m. ()A..2 JB.33.8 JC.83.8 JD.44.6 J的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)