A 0.60 kg mass attached to a horizontal spring has a 4.0 s period of oscillation. Neglect friction and drag. The velocity versus time graph for this mass-spring system is shown at right. What is the earliest time that the mass is at the equilibrium point?
A. 0 s.
B. 1 s.
C. 2 s.
D. 3 s.
Answer:A
A 0.60 kg mass attached to a horizontal spring has a 4.0 s period of oscillation. Neglect friction and drag. The velocity versus time graph for this mass-spring system is shown at right. What is the earliest time that the mass is at the equilibrium point?
A. 0 s. B. 1 s. C. 2 s. D. 3 s.