A spring of stiffness 1kN/m is attached to a block of mass 4kg on a surface that has frictional co-efficient 0.4.The spring is compressed and released, and the block accelerates at `2m/s^(2)` just as it is released. The work done in compressing the spring is:

Two blocks of masses m and m' are connected by a light spring on a horizontal frictionless table . The spring is compressed and then released . Find the ratio of acceleration of masses .

The spring is compressed by a distance a and released. The block again comes to rest when the spring is elongated by a distance b . During this

In the figure, the block of mass m, attached to the spring of stiffness k is in correct with the completely elastic wall, and the compression in the spring is e. The spring is compressed further by e by displacing the block towards left and is then released. If the collision between the block and the wall is completely eleastic then the time period of oscillation of the block will be

Two blocks of mass 2kg and 5kg are given speed as shown in the figure. System is lying on a frictionless surface and the blocks are connected by a massless spring if spring constant 35 N/m . Find the maximum compression in the spring.

A spring, placed horizontally on a rough surface is compressed by a block of mass m, placed on the same surface so as to store maximum energy in the spring. If the coefficient of friction between the block and the surface is mu , the potential energy stored in the spring is

A block A has a mass m_(1)=2 kg and is attached to a spring of spring constant 50 N/m. Another block of mass 4 kg is pressed against A, so that the spring is compressed by a distance d. Then find the maximum value of d (in metre) for which on release of B. the block A does no lose contact from wall. (Friction coefficient mu=0.5 ).

A block of mass m is attached to a spring of force constant k whose other end is fixed to a horizontal surface. Initially the spring is in its natural length and the block is released from rest. The average force acting on the surface by the spring till the instant when the block has zero acceleration for the first time is

A block of mass m is suddenly released from the top of a spring of stiffness constant k. a. Find the acceleration of block just after release. b. What is the compression in the spring at equilibrium. c. What is the maximum compression in the spring. d. Find the acceleration of block at maximum compression in the spring.

Two masses m and 2m are attached to two ends of an ideal spring as shown in figure. When the spring is in the compressed state, the energy of the spring is 60 J, if the spring is released, then at its natural length

Spring of spring constant k is attached with a block of mass m_(1) , as shown in figure. Another block of mass m_(2) is placed angainst m_(1) , and both mass masses lie on smooth incline plane. Find the compression in the spring when lthe system is in equilibrium.