The original Ahmed Čolić zbirka is a physical book, often published by Sarajevo Publishing or Svjetlost. However, many students search for a PDF version. While we encourage supporting authors by purchasing the book, digital copies are sometimes available through:
Important note: As of 2025, no official e-book version exists for most editions. Be cautious of malware on unofficial sites.
Key formulas:
Typical problem: A pendulum on Earth has T=2 s. On the Moon (g smaller) what is T? Answer: longer period.
Čolić’s harder problems: Combining spring and pendulum concepts, or a standing wave on a string with fixed ends (wavelength ( \lambda = 2L/n )).
Unlike many modern digital learning tools, Colic keeps it old school. The back of the book contains final answers (e.g., "v = 12.4 m/s") but rarely the full step-by-step solution. This forces the student to work through the logic, only using the answer as a checkpoint.