Uniform (or constant) acceleration means that the acceleration doesn't change over time.
"Uniform acceleration" means that acceleration doesn't change over time - usually for a fairly short time that you are considering. This is the case, for example, when an object drops under Earth's gravity - and air resistance is insignificant. "Non-uniform acceleration", of course, means that acceleration does change over time.
If the velocity is uniform, then the final velocity and the initial velocity are the same. Perhaps you meant to say uniform acceleration. In any event, the question needs to be stated more precisely.
A body is said to move with uniform velocity if it has no acceleration. This implies that the body moves with a constant speed along a straight line path. This also means that the body moves with equal displacements in equal intervals of time, however small these time intervals may be.
A body moving at a uniform speed may have a uniform velocity, or its velocity could be changing. How could that be? Let's look. The difference between speed and velocity is that velocity is speed with a direction vector associated with it. If a car is going from, say, Cheyenne, Wyoming to the Nebraska state line at a steady speed of 70 miles per hour, its velocity is 70 miles per hour east. Simple and easy. Uniform speed equals uniform velocity. (Yes, I-80 isn't perfectly straight there. Let's not split hairs.) But a car moving around a circular track at a uniform speed is constantly changing direction. Its speed is constant, but its velocity is changing every moment because the directionit is going is changing. Speed is uniform, but velocity isn't. As asked, uniform speed is a uniform distance per unit of time. And this will yield a uniform distance per unit of time in its velocity, but the direction vector may be uniform or it may be changing each moment, as illustrated.
A particle moving with a constant velocity has no acceleration. Acceleration is the change in velocity over time. If the velocity is constant, there can be no acceleration. For you Calculus junkies, dv/dt (v is velocity) is acceleration, and will equal zero if v is a constant.
Uniform acceleration means that the acceleration doesn't change over the course of time (of the time considered for a certain problem, at least).
"Uniform acceleration" means that acceleration doesn't change over time - usually for a fairly short time that you are considering. This is the case, for example, when an object drops under Earth's gravity - and air resistance is insignificant. "Non-uniform acceleration", of course, means that acceleration does change over time.
uniform acceleration mean that the acceleration doesn't change over the course of time of the time considered for a certain
If body is moving in a circle with uniform or constant speed its acceleration will be uniform as velocity i.e. to say direction is changing at every point.
From a kinematic perspective, just observing the motion of an object, we can say that an object is experiencing uniform acceleration if the magnitude of the object's velocity changes at a constant rate but maintains the same direction. From a dynamic perspective, as a consequence of Newton's second law, we know that whenever the net force on an object is constant (in magnitude and direction) the object will undergo uniform acceleration.
Yes as a body moves along a circular path with uniform speed, its direction is ever changing. Hence the velocity is changing. So acceleration must be present. If acceleration vector is in the direction of the velocity then definitely its magnitude would change and so we cannot say the motion to be uniform. So the acceleration has to be perpendicular to the velocity vector, so it has to be along the radius. Hence the acceleration is named as radial acceleration. The force thus produced is known as centripetal force ie centre seeking force.
When an object travels in a straight line and at the same speed, we call it an uniform speed. When an object travels at different speeds, we say that the object is at non uniform speed.
If an object covers unequal distance in unequal intervals of time ,we can say it is in non uniform speed
That simply means that the acceleration changes over time.
If the velocity is uniform, then the final velocity and the initial velocity are the same. Perhaps you meant to say uniform acceleration. In any event, the question needs to be stated more precisely.
when the body travels in unequal velocity in equal intervals of time.
When it's velocity is unaffected by external circumstances