1. A particle P of mass 2 kg is moving with velocity (3i+ 4j)m s' when it receives an impulse. Immediately after the impulse is applied, P has velocity (2i-3j)m s-'.(a) Find the magnitude of the impulse.(5)(b)Find the angle between the direction of the impulse and the ...
5.XN Pd Figure 2 A particle P of mass 2 kg is pushed up a line of greatest slope of a rough plane by a horizontal force of magnitude X newtons, as shown in Figure 2. The force acts in the vertical plane which contains P and a line of greatest slope of the plane. The plane i...
A particle of mass 2kg is acted upon by a horizontal force of magnitude 10N for 8 seconds,in which time time it moves from rest until it is travelling with speed v米每秒.Show that v=40.The particle continues to move with this speed for the next 10 seconds.It is then brought to rest...
4. A particle P of mass 2m is moving in a straight line with speed u on a smooth horizontal plane. The particle P collides directly with a particle Q, of mass m, which is moving on the plane along the same straight line as P but in the opposite direction to P. Immediately before...
A particle P of mass m kg moves at a speed of um s-1 when itcollides head on witha particle O of mass km kg also travelling at a speed of um s-1,travelling along thesame line.After collision, the two particles move off together with a common speed of vm s-1.u-V__u+V...
DThe maximum distance between the particle and origin is2.5m Submit Submit A body of mass 1 kg begins to move under the action of a time dependent forceF=(2tˆi+3t2ˆj)N,whereˆiandˆjare unit vector along x and y axis. What power will be developed by the force at the time...
结果1 题目 A particle, , of mass kg moves under the action of a single force, Newtons. At time , the velocity, ms-1 of is given by ms-1. At time , is at the origin.Work out when . Show all your working. 相关知识点: 试题来源: 解析 N 反馈 收藏 ...
A particle P of mass m kg is attached to one end of a light inextensible string of length 2.5 m. The other end of the string is attached to a fixed point A on a vertical wall. The tehsion in the string is 16N. The particle is held in equilbrium by a force of magnitude F new...
1一道英文的物理题A particle of mass 2.2kg rested on a smooth slope inclined at 30° to the horizontal.It is connected by a light inextensible string over a smooth rail at the top of the slope to a particle of mass 2.7kg which hangs freely.The particles are set in motion by projecting...
7. A particle P of mass 0.5kg is attached to one end of a light elastic spring, of natural length1.2m and modulus of elasticity 15N. The other end of the spring is attached to a fixed point A on a smooth horizontal table. The particle is placed on the table at the point B where...