# Flash Cards

kinematic

## Acceleration on Position-Time Graph

Acceleration on a position vs. time graph can be obtained, by having the initial position and velocity of a moving object. In this article, we want to show you how to find constant acceleration from a position-time graph with some solved problems. You can skip this introduction and refer to problems 6 and 7.  Types of Motion: An object can move at a constant speed or have a changing velocity. Suppose you are driving a car at a constant speed of $100\,{\rm km/h}$ along a straight line. What does mean by $100\,{\rm km/h}$?  The speed of $100\,{\rm km/h}$ indicates that you drive the first 100 km in the first hour, the next 100 km during the second hour, an

kinematic

## Displacement and distance problems with solutions

Problems and Solutions about distance and displacement are presented and updated useful for high school and college students. In the following, displacement is computed for simple cases, Problem (1):  An object moves from point A to B, C, and D finally, along a rectangle.  (a) Find the magnitude and direction of the displacement vector of the object? (b) Find the distance traveled by that object? (c) Suppose the object returns to point A, its initial position. Now, Find the displacement and distance?   Solution (1): (a) By definition of displacement, connect the initial (A) and final (D) points together. As shown, displacement is toward the n