Determine the angular velocity of the pulley, Physics

Assignment Help:

A pulley in the form of a uniform disk with a heavy rope hanging over it. The circumference of the pulley is 1.2m and its mass is2.2kg.The rope is 8.0m long and its mass is 4.8kg.At the instant shown in the figure, the system is at rest and the difference in height of the two ends of the rope is 0.6m (a)What is the angular velocity of the pulley when the difference in height between the two ends of the rope is 7.2m?(b)Obtain an expression for the angular momentum of the system as a function of time while neither end of the rope is above the center of the pulley. There is no slippage between rope and pulley wheel.


I know that F is change due to the difference in line between two end of line

but I don't know how to begin calculate this problem!!

I have to use

mgh=1/2Iw^2

or

total torque= (L^2)/2I ?

may some one can give me a hint.


Related Discussions:- Determine the angular velocity of the pulley

Kinematics, An aereplane has velocity 500m/s with respect to air. Wind blow...

An aereplane has velocity 500m/s with respect to air. Wind blows with velocity 20m/s along north. Then in what direction pilot should be heading so as to go along North-east direct

Pendulum, a pendulum is timed ,first for 20 swings and then for 50 swings ;...

a pendulum is timed ,first for 20 swings and then for 50 swings ; time for 20 swings = 17.4 sec and time for 50 sec = 43.2. calculate the average time per swing/

Mechanical properties of solids, Assignment of applications of elastic beha...

Assignment of applications of elastic behaviour of materials

Which is equal to a newton, A Newton is equal to which of the following? ...

A Newton is equal to which of the following? a)  kilogram-meter per second b)  meter per second squared c)  Kilogram-meter per second squared d)  Kilogram per

Expermient of a metal ring stand and rings, A metal ring stand and rings ...

A metal ring stand and rings A useful ring stand and rings can be made from a flat curtain rod and the fixtures which clamp over electric bulbs to hold lamp shades. These are u

What is an electric dipole, Q. What is an electric dipole? Define: the dipo...

Q. What is an electric dipole? Define: the dipole moment. Two equal as well as opposite charges separated by a very small distance constitute an electric dipole. Instances amm

Explain torque, A 92-kg man uses a 3.05-m board to attempt to move a boulde...

A 92-kg man uses a 3.05-m board to attempt to move a boulder, as shown in the diagram below. He pulls the end of the board with a force equal to his weight and is able to move it t

Exhaust gas temperature, Exhaust gas temperature Monitoring of the temp...

Exhaust gas temperature Monitoring of the temperatures within the engine core is performed by the exhaust gas temperature system. The operating limits of the engine, and monit

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd