资讯

The faster-than-light travel in Star Wars involves some otherworldly acceleration. Here's how to calculate the g-forces of a hyperspace jump.
Learn the difference between distance, displacement, speed and velocity, and how to calculate distance, speed and acceleration.
In this tutorial, I show you how to use video analysis to find the acceleration of a jumping grasshopper.
The speed-time graph in the question below shows how the speed of a bus changes during part of a journey. b) At what time during the journey did the bus reach its greatest speed? c) How long did the ...