Key Points from Lecture

Clarifications and Corrections

• Point (x1, y1)
  • Originally stated: x1 = -10, y1 = 100
  • Correction needed
• Final Answer Correction
  • Originally stated: 9.3
  • Needs verification

Understanding the Formula and Constants

• Formula: F = -kx
  • Understanding how Force and displacement relate with the spring constant.
• Spring Constant (K)
  • Formula: K = -(F/x)
  • Correction to the given formula and its derivation
  • Given correction: k = -(-9) → k = 9

Nature of Potential Energy (P.E.)

• Earlier Mistake: Stated Potential Energy (P.E.) as negative
• Important Note: All values of P.E. should be positive

Summary Note: Ensure all corrections are applied to calculations, and remember that P.E. values are always positive.