Is this a conservation of energy problem?

[Lori]

Homework Statement

I'm sorry but I don't have the exactly problem written down but I know the givens.

So the question involves finding work done on a pendulum hanging from the ceiling.

Homework Equations

I was given the the length of the string is 1m. That a mass hangs at the bottom of string and it's 2kg. That it displaces .5 meters to the left.

The Attempt at a Solution

I was thinking that I had to do mgh = 1/2mv^2 but then did know how to get velocity.

Any clues?
[/B]

 

[mfb]

Velocity of what?

Did you draw a sketch? What is the height of the mass at the end (and initially)?

 

[Lori]

Velocity of what?

Did you draw a sketch? What is the height of the mass at the end (and initially)?

Yes I've done the sketch. There was no given height! That's why I'm kinda a bit lost and confused.

 

[Abhishek kumar]

Homework Statement

I'm sorry but I don't have the exactly problem written down but I know the givens.

So the question involves finding work done on a pendulum hanging from the ceiling.

Homework Equations

I was given the the length of the string is 1m. That a mass hangs at the bottom of string and it's 2kg. That it displaces .5 meters to the left.

The Attempt at a Solution

I was thinking that I had to do mgh = 1/2mv^2 but then did know how to get velocity.

Any clues? [/B]

Velocity

Yes I've done the sketch. There was no given height! That's why I'm kinda a bit lost and confused.

But you have given mass displaced.5 meter and length of string 1meter from this you can calculate height

 

[Lori]

Velocity

But you have given mass displaced.5 meter and length of string 1meter from this you can calculate height

I'm not really recognizing how we can find height?

 

[barryj]

I don't think you have done the sketch properly. Draw the sketch and dimension where the mass is located.

 

[Abhishek kumar]

Like this you can do

 

[Abhishek kumar]

There's no change in height?

You show the figure i have posted?