13. A simple pendulum of length and bob with mass is attached to a massless support moving horizontally with constant acceleration . Determine (a) the equations of motion and (b) the period for small oscillations.

14. A simple pendulum of length and bob with mass is attached to a massless support moving vertically upward with constant acceleration . Determine (a) the equations of motion and (b) the period for small oscillations.

15. A pendulum consists of a mass suspended by a massless spring with unextended length band spring constant . Find Lagrange's equations of motion.

13.A simple pendulum of length b and bob with mass m is attached to a massless support moving horizontally with constant acceleration a. Determine [a] the equations of motion and [b] the period for small oscillations. 14.A simple pendulum of length b and bob with mass m is attached to a massless support moving vertically upward with constant acceleration (1. Determine [a] the equations of motion and (b) the period for small oscillations. 15.A pendulum consists of a mass m suspended by a massless spring with unextended length band spring constant k. Find Lagrange's equations of motion