MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Work Done by Force of Gravity

A chain of ma...

Question

A chain of mass $m$ and length $l$ is placed on a table such that its $n$ th part is hanging. Find work done to take hanging part over the table

Open in App

Solution

Displacement of hanging part's $C O M = \frac{l}{2 n}$
mass of hanging part= $\frac{m}{n}$
$∴ ω = F_{S} cos θ ⟹ ω = F_{s}$ (as $θ = 0 °$ )
= $\frac{m}{m} g (\frac{l}{2 n})$
$ω = \frac{m g l}{2 n^{2}}$

Suggest Corrections

thumbs-up

0

Similar questions

Q. A chain of mass

m

L

is held on a frictionless table in such a way that

\frac{1}{n} t h

part is hanging below the edge of table. Calculate the work done to pull the hanging part of the chain.

Q. A chain is held on a frictionless table with (1/n)th of its length hanging over the edge. If the chain has a length L and ,mass M , how much work is required to pull the hanging part back on the table?

Q. A chain of mass

M

is placed on a smooth table with

\frac{1}{n^{t h}}

L

hanging over the edge. The work done in pulling the hanging portion of the chain back to the surface of the table is:

Q. A uniform chain has a mass

m

l

. It is held on a frictionless table with two third of its length hanging over the edge. Find the work done in just pulling the hanging part back on the table.

Q. A chain of length

L

M

is held on a frictionless table with

{(\frac{1}{n})}^{t h}

part hanging over the edge. Work done in pulling the chain is directly proportional to:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Work done by the force of gravity

PHYSICS

Watch in App

explore_more_icon

Explore more

Work Done by Force of Gravity

Standard X Physics

Join BYJU'S Learning Program

CrossIcon