Using strain energy.
which formula is used to find the deflection of the free end of the cantilever beam of length āLā subjected to concentrated load āpā at the free end?
1
\(\Delta=\frac{PL^2}{2El}\)
2
\(\Delta=\frac{PL^2}{4El}\)
3
\(\Delta=\frac{PL^3}{3El}\)
4
\(\Delta=\frac{PL^2}{El}\)