![homework and exercises - A bar weighs $2N$ and is $5m$ in length. What is the weight needed to balance the bar? - Physics Stack Exchange homework and exercises - A bar weighs $2N$ and is $5m$ in length. What is the weight needed to balance the bar? - Physics Stack Exchange](https://i.stack.imgur.com/653fU.png)
homework and exercises - A bar weighs $2N$ and is $5m$ in length. What is the weight needed to balance the bar? - Physics Stack Exchange
![A bar magnet of magnetic moment M is bent in shape such that all the parts are of equal lengths. Then new magnetic moment is: A bar magnet of magnetic moment M is bent in shape such that all the parts are of equal lengths. Then new magnetic moment is:](https://dwes9vv9u0550.cloudfront.net/images/4435926/873df2b4-31a3-437a-b542-01485a4ef49d.jpg)
A bar magnet of magnetic moment M is bent in shape such that all the parts are of equal lengths. Then new magnetic moment is:
![A bar of mass m is held as shown between 4 uniform discs each of mass m^' & radius r = 75 mm. The bar has been released from rest, knowing that A bar of mass m is held as shown between 4 uniform discs each of mass m^' & radius r = 75 mm. The bar has been released from rest, knowing that](https://dwes9vv9u0550.cloudfront.net/images/1803539/18726386-a027-47aa-9304-6915c275affd.jpg)