Flash Cards

In this article, we have attempted to teach you the formulas for projectile motion by presenting some solved examples. Through this method, you will gain a better understanding of the equations for projectiles. Definition of projectile motion: Projectile motion refers to the motion of any object that is thrown into the air at an angle $\theta$. It is characterized by motion in two dimensions and is solely influenced by gravitational force.  Projectile Motion Formulas: The following equations represent projectile motion in the vertical and horizontal directions. In the horizontal direction: \begin{align*} \text{Displacement}&:\,\Delta x=\underbrace{\left(v_0 \c

How to find acceleration from a position vs. time graph?  Answer: Acceleration on a position vs. time graph can be obtained, numerically by having the initial position and velocity of a moving object Or graphically, by observing the curvature of the $x-t$ graph. A graph, looking like an upside-down bowl, represents a negative acceleration and vice versa.  In this long 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 the worked examples.    Types of Motion: An object can move at a constant speed or have a changing velocity. Suppose you a

Problems and Solutions about displacement and distance are presented which is helpful for high school and college students. In the following, displacement is computed for simple cases.   Displacement Problems: 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: (a) By definition of displacement, connect the initial (A) and final (D) points together. As shown, displace