Constant velocity, also known as uniform velocity, refers to the motion of an object in a straight line where its speed remains constant over time. It means that the object covers equal distances in equal intervals of time. In other words, the object's magnitude and direction of velocity remain unchanged throughout its motion.
Examples of objects exhibiting constant velocity or uniform velocity motion include:
A car traveling on a long, straight highway at a constant speed of 60 miles per hour (mph). As long as the car maintains the same speed and continues moving in a straight line, its velocity is constant.
An airplane cruising at a steady velocity of 900 kilometers per hour (km/h) along a straight flight path. If the airplane maintains a constant speed and direction, its velocity is uniform.
A cyclist pedaling at a constant velocity of 20 kilometers per hour (km/h) on a straight road. As long as the cyclist maintains the same speed and continues moving in a straight line, the velocity remains constant.
A train moving at a steady velocity of 100 kilometers per hour (km/h) on a straight railway track. If the train maintains a constant speed and direction, its velocity is uniform.
In all these examples, the objects maintain a consistent speed and direction, resulting in a constant velocity or uniform velocity motion.