According to Newton's 2nd Law,
Net Force = Mass x Acceleration
For velocity to be truly uniform, the object must be moving in a straight line. If that is the case then the acceleration is Zero.
Objects moving in uniform circular motion will have a constant speed, and two objects with the same acceleration have a constant velocity.
If an object has constant velocity, its motion is said to be uniform. This means the object is moving in a straight line at a consistent speed.
If a car moving in a straight line travels equal distance in equal time no matter how small these distances may be, the car is said to be moving with a CONSTANT or Uniform Velocity.
The path of the object is straight during uniform motion .
When an object is not accelerating at all. It has constant velocity.
When the direction changes. A simple case is an object moving in a circle, at constant speed.
An object moving at a constant speed without a force acting on it experiences no acceleration or external influence to change its motion. In the absence of forces like friction or gravity, an object can continue moving at a steady pace indefinitely.
A motion with a constant speed will always be moving the same speed A motion with a constant acceleration will constantly be gaining speed, and does not remain moving at the same speed.
When an object is moving in a uniform circular motion while traveling in a circular path, this means it has a constant speed. When an object is moving in a circular path, this indicates it is constantly being pulled towards the center of the circle.
Circular -Brittany Goraczkowski
In order for an object to be in constant uniform motion ... that is, un-accelerated, with constant speed and direction of motion ... the vector sum of all forces acting on it must be zero.