There are five SUVAT equations involving motion in a straight line at a constant acceleration. When an object is accelerating under gravity with no other force acting on it, it is said to be in free fall. The acceleration of free fall is denoted by g, whose value is...

# 3.1 Motion

## Projectile MotionProjectile Motion

The vertical and horizontal motions of a projectile are independent of one another. The vertical velocity changes due to acceleration of free fall, whereas horizontal velocity remains constant. This means that a projectile has a constant velocity in one direction and...

## KinematicsKinematics

Definitions: Displacement: a vector quantity that refers to how far an object is from its original position. Instantaneous speed: the speed of a car over a very short period of time, found by drawing the tangent to the distancetime graph and determining its gradient....

## Module 3.1 – MotionModule 3.1 – Motion

Distance travelled by an object is the length of path taken. a. SI unit is metre (m) b. Scalar quantity c. Can never be negative. 2. Displacement is the shortest distance from the initial to the final position of an object. a. SI unit is metre (m) b....