Write the equation of motion for free vibration of a reinforced concrete cantilever beam of length 2.00 m, cross-sectional dimensions 200 x 450 mm, carrying a point load of 20 kN at its free end. An...

Extracted text: Write the equation of motion for free vibration of a reinforced concrete cantilever beam of length 2.00 m, cross-sectional dimensions 200 x 450 mm, carrying a point load of 20 kN at its free end. An initial displacement x is applied downwards at the free end of the beam as shown in Fig. 2.40. Ignore the weight of the beam and assume modulus of elasticity of the material to be 25000 MPa. 3. 20 kN 200 m Fig. 2.40