« · »

Physlets run in a Java-enabled browser, except Chrome, on the latest Windows & Mac operating systems. If Physlets do not run, click here for help updating Java & setting Java security.

Problem 4.1: Which is the correct free-body diagram?

Please wait for the animation to completely load.

A red block is pushed and moves as shown in the animation. In addition, a green block sits on the red block and moves as well. Restart.

  1. Which free-body diagram is correct? Give reasons why the other three diagrams are incorrect.
  2. How would your answer to (a) change if the blocks did not move?
The OSP Network:
Open Source Physics - Tracker - EJS Modeling
Physlet Physics
Physlet Quantum Physics