3. A block A of mass 9 kg is released from rest from a point P which is a height h metres above horizontal soft ground. The block falls and strikes another block B of mass 1.5 kg which is on the ground vertically below P. The speed of A immediately before it strikes B is 7 ...
A block A of mass 5 kg is lying on a smooth horizontal table. A light inextensible string connects A to a block B of mass 4 kg which hangs freely over a smooth pulley at the edge of the table Find the acceleration of the system and the tension in the string. Figure.A B 相关知...
A,B,and C.Point A is at the top of the track where a block of mass m is placed ready to get released. It is at the height labeled ha from the
A block of mass 5 kg lies on rough horizontal ground. The coefficient of friction between the block and the ground is 0.4. A horizontal force P is applied to the block. Find the magnitude of the frictional force acting on the block and the acceleration of the block when the magnitude of...
A block of mass 1 kg lies on a horizontal surface in a truck. The coefficient of friction between the block and the surface is 0.4. if the acceleration of the truck is 5 m/s Find the frictional force acting on the block? C A)2 N B)55 M C)4N D)10 N 相关知识点: 试题来源...
to the horizontal. A force P of magnitude 25 N acting parallel to the plane is just enough to prevent the block from sliding down the plane. (1)Find the coefficient of friction between the block and the plane. (2)P is now increased until the block is about to slide up the plane. ...
A block of mass 10 kg is placed on a rough plane inclined at 20° to the horizontal. A force P of magnitude 25 N acting parallel to the plane is just enough to prevent the block from sliding down the plane.(1)Find the coefficient of friction μ between the block and the plane.(2...
61)Ablock of mass m=10 kg is hanging over a frictionless light fixed pulley by an inextensible light rope. Initially the block is held at rest. The other end of the rope is now pulled by a constant force F in the vertically downward direction. The linear momentum of the block is seen...
题目【题目】A block of mass 2 kg rests on a rough horizontal plane. A force P acts on the block at an angleof 45° to the horizontal The equilibrium i limiting, with u = 0.3.Find the magnitude of Pif:P acts in a downward direction 相关知识点: ...
1【题目】A block of mass 25 kg rests on a rough planeinclined at an angle e to the horizontal withsine=0.35.T he coefficient of friction between the block and the plane is 0.2.(1)Find the acceleration of the block when a force of 40 N acts on it.T he force is parallelto the ...