Problem Solving Using Lagrange's Equations-I
Pages 239- 242 Classical dynamics of particles and systems by S. T. Thorntom and J. B. Marion, 5th. Edition Harcourt Brace and company (2012).
Pages 239- 242 Classical dynamics of particles and systems by S. T. Thorntom and J. B. Marion, 5th. Edition Harcourt Brace and company (2012).