Constant-velocity

Constant-velocity, in the context of motion, refers to the condition where an object maintains a uniform speed and direction over a specific period. It signifies the absence of acceleration, meaning the object's velocity vector (speed and direction) remains unchanged. This is often idealized in physics problems as it simplifies calculations and allows for direct application of kinematic equations. A constant-velocity scenario is achieved when the net force acting on an object is zero, according to Newton's first law of motion, also known as the law of inertia. This balance of forces ensures no change in the object's state of motion. The term is crucial in studying uniform linear motion and its applications.

Constant-velocity meaning with examples

• The train moved along the straight track at constant velocity, covering equal distances in equal time intervals. Passengers enjoyed the smooth ride, appreciating the lack of acceleration. Its velocity, both speed, and direction remained steady.
• An airplane cruises at constant velocity during its flight's stable middle portion. No forces acting on the plane were considered; all were balanced, maintaining the airplane’s constant velocity and keeping it stable in the sky.
• A hockey puck sliding across frictionless ice moves with approximately constant velocity once it has been hit. The surface is ideal, eliminating almost all the forces and causing the puck to continue along a straight line.
• The spacecraft continued its journey toward its destination at a constant velocity. The engines were off. The distance continued in a constant direction.
• To achieve constant velocity in a car, you need to keep the accelerator steady on a flat road. No external factors such as wind resistance or engine power can upset its balance.