- #1
bksree
- 77
- 2
Attached is a worked problem in the Classical Mech book by Morin.
I don't understand how eqn (2.57) is the net moment about the pivot. Isn't it only the moment of the weight of the portion of the stick to the right of the pivot ? What about the moment due to the weight of length 'l' on left of pivot ?
Why is the equation 2.57 differntiated the second time ?
Please explain.
TIA
I don't understand how eqn (2.57) is the net moment about the pivot. Isn't it only the moment of the weight of the portion of the stick to the right of the pivot ? What about the moment due to the weight of length 'l' on left of pivot ?
Why is the equation 2.57 differntiated the second time ?
Please explain.
TIA