Acceleration and velocity Newton's second law says that when a constant force acts on a massive body, it causes it to accelerate, i.e., to change its velocity, at a constant rate.

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Learn the difference between distance, displacement, speed and velocity, and how to calculate distance, speed and acceleration.

Constant Force and Constant Motion I see this problem all the time. The idea that if you apply a constant force on an object, it should move at a constant speed.