Free AP Physics C lesson

Newton's Laws & Force Analysis

This AP Physics C: Mechanics lesson is designed for AP Physics C self-study. It includes 5 video lessons, 11 practice questions, and an estimated completion time of 30 minutes.

Video lessons

  1. Inclined Plane Problems (Ramp Problems)

    Watch on YouTube

  2. The Force of Tension From a String, Rope, or Spring

    Watch on YouTube

  3. Force of Kinetic Friction

    Watch on YouTube

  4. Force of Static Friction

    Watch on YouTube

  5. Part II: Inclined Plane Problems

    Watch on YouTube

Practice covered

  1. A block slides down a frictionless incline at angle theta = 30^circ. What is the magnitude of the block's acceleration down the incline?
  2. A 5 kg block rests on an incline at 37^circ to the horizontal. What is the magnitude of the normal force acting on the block? (Use g = 10 m/s^2 and cos(37^circ) approx 0.8)
  3. A massless string is attached to a wall and pulled with a force of 8 N. What is the tension throughout the string?
  4. Which of the following statements about tension in strings is TRUE?
  5. A 4 kg crate slides across a horizontal floor with coefficient of kinetic friction mu_k = 0.25. What is the magnitude of the kinetic friction force (in Newtons)? Use g = 10 m/s^2.
  6. A book slides to the right across a table and experiences kinetic friction. In which direction does the kinetic friction force act?
Loading your progress...