**A 5-kg mass hangs at the end of a spring whose constant is k=400 N/m. The mass is displaced a distance of 25 cm and released.**

**A) What is the acceleration at the instant the displacement is x=+9 cm?**

**B) What is the Maximum acceleration and at what displacement does it occure?**

**Please show your work and explain how you got the answer! Thank you!! ðŸ™‚**