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 ...

The gradient of speed-time and velocity-time graphs represent acceleration. ... eg 50 km due north of the original position. of the moving object. If the velocity is always positive, ...

Remember, acceleration is the same as gradient, and acceleration = velocity change ÷ time. Look at the graph. The acceleration of the vehicle in the first 10 seconds is: ...