Determining the Spring Constant, k, with a Vertically Hanging Mass (5:46)
A vertically hanging spring with a natural length of 5.4 cm is extended to a length of 11.4 cm when 25 grams is suspended from it. What is the spring constant of the spring? This is an AP Physics 1 topic.
0:08 Translating the problem
0:54 The free body diagram
1:53 Understanding the direction of the Spring Force
2:46 Summing the forces
3:32 Common misconception when using Hooke’s Law equation
5:00 Using the magnitude of the displacement from equilibrium