Home
Class 12
PHYSICS
A fixed wedge ABC is in the shape of an ...

A fixed wedge ABC is in the shape of an equilateral triangle of side `l`. Initially, a chain of length `2l` and mass m rests on the wedge as shown. The chain is slowly being pulled down by the application of a force F as shown. Work done by gravity till the time, the chain leaves thw wedge will be:

A

`-(((sqrt(3)+1)mgl)/(2))`

B

`(((sqrt(3)+2)mgl)/(2))`

C

`-(((sqrt(3)+2)mgl)/(4))`

D

`(((sqrt(3)+4)mgl)/(4))`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

A fixed wedge ABC is in shape of equilateral triangle of side l. Initially , achain of length 2l and mass m rests on the wedge as shown. The chain is slowly being pulled down by the application of a force F as shown. Work done by gravity till the time, the chain leaves the wedge will be :

A constant horizontal force (F) is applied at the vertex A of an equilateral triangular wedge ABC of mass M and side length AB=BC=CA= l_(1) placed on a rough horizontal surface as shown in the figure. Even after the application of force F the wedge remains stationary. Calculate the torque of normal reaction acting between the wedge and the floor about the vertex B.

A uniform chain of length 2m is kept on a table such that a length of 60 cm hangs freely from the edge of the table . The total mass of the chain is 4 kg What is the work done in pulling the entire the chain the on the table ?

A block of mass m is at rest on wedge as shown in figure. Let N be the normal reaction between two and f the force of friction, then choose the wrong option.

Find moment of inertia of a thin sheet of mass M in the shape of an equilateral triangle about an axis as shown in figure. The length of each side is L

A system consists three particles, each of mass M lying on the corners of an equilateral triangle of side 2l . If the length of each side of the triangle is decreased to l , without the gain in kinetic energy of the particles, the work done by an external agent is given by

A man places a chain (of mass m and length l ) on a table slowly. Initially, the lower end of the chain just touches the table. The main brings down the chain by length l//2 . Work done by the man in this process is

A uniform chain of length l and mass m is placed on a smooth table with one-fourth of its length hanging over the edge. The work that has to be done to pull the whole chain back onto the table is :

A uniform chain of mass 4 kg and length 2 m is kept on table such that 3//10^("th") of the chain hanges freely from the edge of the table. How much work has to be done in pulling the entire chain on the table?

Three masses each of mass m are palced at the vertices of an equilateral triangles ABC of side l as shown in figure. The force acting on a mass 2m placed at the centroid O of the triangle is