A 52 cm long thin string is attached to a 25 g mass. You bringthe mass up until you make a 4.2â—¦ angle with respect to theequilibrium position and let go. You start the timer when thesimple pendula has a 2.1â—¦ angle with respect to the equilibriumposition. (a) What are the equations for the position, velocity,and acceleration of the system? (b) Using your equations, determinewhat the three will equal at the instant you let go, and 3.0 safter you let go. Assume no damping occurs.
