Which of the following statement is NOT true for 'self-weight' (one of the non-applied forces)?
1
When analysing non-equilibrium conditions of a body, self-weight is treated as acting through the centre of gravity of the body.
2
Everybody subjected to gravitational acceleration and hence has got a self-weight.
3
Self-weight always acts in vertically downward direction.
4
If self-weight is very small, it may be neglected.