Base your answers to questions 14 and 15 on the diagram below which represents a 35-newton block hanging from a vertical spring, causing the spring
to elongate from its original length.
Unstretched spring
0.15 m
Stretched string
0.25 m
35 N

14) Determine the spring constant of the spring (k). You do NOT need to
include the unit (N/m) in your answer. *

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

cutt.ly/4zZs6GM

diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.

the answer is kevlar