A block of mass 7 kg rests on a rough horizontal plane, the coefficient of friction between the block and the plane is 0.7. A horizontal force P acts on the block as shown in the diagram.Calculate the acceleration when P=60 N∴1/y 相关知识点: 试题来源: 解析 1.7 ms-1 反馈 ...
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 m...
A block of mass 7.5 kg hangs from a wire as shown in the figure. A spring of stiffness 3500 N/m pushes it away from the wall. The angleθis 57 degrees. (a) Draw a free-body diagram showing all the forces on the block.
The friction force acting on theblock is: A2N B4N C3N DNone of theseSubmit If coefficient of friction between both the block is μ−12 . Find friction force acting between both block. A16N B20N C8N D10NSubmit A block of mass 1 kg is placed on a truck which accelerates with ...
A block of mass m, is kept on a wedge of mass M, as shown in figure such that mass m remains stationary w.r.t. wedge. The magnitude of force P is View Solution A block of massis released from rest on a rough inclined ground as shown in figure. Find the work done on the block...
【题目】 A block of mass 25 kg, is at rest on a rough horizontal floor. The coefficient of friction between the block and the floor is 0.4. A force of F N is pulling the block at an angle of20° to the horizontal. The block is on the point of sliding.Find the value of F.F25...
4 A block of mass 20 kg is pulled from the bottom to the top of a slope. The slope has length 10 m and is inclined at 4.5 to the horizontal. The speed of the block is 2.5 ms-' at the bottom of the slope and1.5 m s- at the top of the slope.(i)Find the loss of kineti...
.07kgrests on a wooden plank. The coefficient of static friction between the block and the plank isμs=0.87.One end of the board is attached to a hinge so that the other end can be lifted forming an angle,θ,with respect...
Step by step video, text & image solution for A block of mass 1 kg is just fit in a groove in a platform kept horizontally.Groove is along + ve x -axis.The platform is given acceleration vec( a) = 2 hat( i) +3 hat(j) m//s^(2). If block is not slipping on platform the...
View Solution A block of mass 10 kg is suspended throug two light spring balances as shown in figure View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12, IIT JEE prep,...