结果1 题目 A particle starts from the point whose position vector is (2 i+3 j) m . Its velocity at time t is given by v=((4t-2) i+3t^2 j) ms-1.Work out its position when t=2 s. 相关知识点: 试题来源: 解析 (6 i+11 j) m 反馈 收藏 ...
解析 a v=(3i+(4-4t)j) ms-1α=-4j ms-2 b 5 ms-1 c 1 s d No; to be stationary v must be 0i+0j, but x-component is always 3.结果一 题目 【题目】 A particle moves on a plane such that its position at time t s is given by7=(3t-2)7+(4t-2t)m a Write ...
spherical particleStokes forceadditional massThe unsteady spatial motion of a spherical particle in the Poiseuille flow is described. The particle has four degrees of freedom. The numerical solution of the problem is given.doi:10.3103/S1068799811030111N. I. Klyuev...
DC PANDEY ENGLISH-MOTION-Check Point 4.1 The x and y components of a position vector P have numerical values 5 ... 03:19 An object moves from position (6,8) to (12,10) in the x-y plane. Magni... 03:37 A particle moves in xy-plane from position (2m, 4m) to (6m,8m) is ...
Answer to: A particle with unit mass moves under the influence of a force F ( t ) = ( e t , t 2 , sin ( t ) ) . If V ( 0 ) = ( 1 , 2 , 5 ) , find...
A particle of mass 2 kg moves under the action of three forces: (9 i+4 j) N, (-2 i+5 j) N and (5 i- j) N. Showing your working, work outa. The magnitude of its acceleration,b. The angle between its acceleration vector and the i-direction....
结果1 题目 A particle of mass 0.5 kg is acted on by a force, in newtons ,F=t^2i+2tj. The particle is initially at rest at the origin and t is measured in seconds. Find the acceleration of the particle at time t. 相关知识点: 试题来源: 解析 2t^2i+4tj 反馈 收藏 ...
Calculate the work done by this force if the particle moves from the origin to the point of having the vector position r = (1.85i - 2.51j) m. What is the speed of the particle at r A force vector {F} = (4...
A force is given by a vector F=3 i+4 j+5 k and moves a particle from the point P(2,1,0) to the point Q(4,6,2). Find the work done.相关知识点: 试题来源: 解析 = 36 The displacement vector is D= (PQ)=2,5,2, so by Equation 12, the work done is(split) W&= F...
Answer to: A force F = 5i - 3j + 4k acts on a body at point A(1, 2, 3) and moves it to point B(4, 3, 2). Compute the work done by the force on the...