No, force is not needed to keep a body moving with uniform velocity. This is a fundamental concept in physics called Newton's First Law of Motion (Inertia).

Here's why:

* Uniform Velocity: This means the object is moving at a constant speed in a straight line. There is no change in its speed or direction.

* Inertia: An object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity, unless acted upon by a net force.

Think of it this way:

Imagine pushing a box across a smooth, frictionless surface. Once you stop pushing, the box will continue to slide at a constant speed in the direction you pushed it. This is because there is no force acting on it to slow it down or change its direction.

Important Note: While force isn't needed to *maintain* uniform velocity, force is needed to *start* the motion or to *change* the velocity.