When released, a particular spring-mass system will oscillate along the x axis on a low-friction surface. The mass is 0. 6 kg and the spring stiffness is 100 N/m. The equilibrium position of the mass is x=0 m. You hold the mass still at x=+. 06 m and release it at time t=0 s.
a. ) What is the location of the mass at t= . 13 seconds?
b) When for the first time after t=0 seconds was the location of the mass x= 0. 02 m?