Home
Class 12
PHYSICS
A block of mass M is placed on a smooth ...

A block of mass M is placed on a smooth horizontal surface and it is pulled by a light spring as shown in the diagram. If the ends A and B of the spring are moving with `4ms^(-2) and 2ms^(-1)` respectively and the rate at which spring energy is increasing is `20Js^(-1)`. then what is the value of spring force (in N)?

Text Solution

Verified by Experts

The correct Answer is:
10
Promotional Banner

Similar Questions

Explore conceptually related problems

A block of mass m moving with velocity v_(0) on a smooth horizontal surface hits the spring of constant k as shown. The maximum compression in spring is

A block of mass m is kept on a rough horizontal surface and is attached with a massless spring of force constant k. The minimum constant force applied on the other end of the spring of lift the block is

A block of mass 50kg is placed as a horizontal table. A spring balance is attached to it and is pulled by gradually increasing the force. When the body just moves, the reading of the spring balance is 50N . Find the coefficient of friction.

A block of mass m is placed on a smooth horizontal floor is attached to one end of spring. The other end of the spring is attached to fixed support. When spring is vertical it is relaxed. Now the block is pulled to wards right by a force F, which is being increased gradually. When the speing makes angle 53^(@) with the vertical, block leaves the floor. Force constant of the spring is :-

A block of 10 g slides on smooth horizontal surface with 20 m/s towards a spring of spring constant 100 N/m placed horizontally (as shown in figure). The maximum compression in spring is

A sphere of mass m and radius R rolls without sliding on a horizontal surface. It collides with a light spring of stiffness K with a kinetic energy E . If the surface ( AB ) under the spring is smooth, find the maximum compression of the spring.

A block of mass 20 kg is suspended through two light spring balances as shown in fig. Calculate the: (a) reading of spring balance (1), (b) reading of spring balance (2).

A block of mass m having a charge q is placed on a smooth horizontal table and is connected to a wall through an unstressed spring of spring constant k as shown in figure(29.E1) . A horizontal electric field E parallel to the spring is switched on. Find the amplitude of the resulting SHM of the block.

A block of mass m, lying on a smooth horizontal surface, is attached to a spring (of negligible mass) of spring constant k. The other end of the spring is fixed, as shown in the figure. The block is initally at rest in its equilibrium position. If now the block is pulled withe a constant force F, the maximum speed of the block is :

a block of mass 0.1 kg attached to a spring of spring constant 400 N/m pulled horizontally from x=0 to x_1 =10 mm. Find the work done by the spring force