uniform acceleration mean that the acceleration doesn't change over the course of time of the time considered for a certain
Uniform (or constant) acceleration means that the acceleration doesn't change over time.
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.
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.
The body is not zero, but the sum of all forces on it is. -- "Uniform velocity" means no acceleration. -- Acceleration is force/mass . -- If acceleration is zero, that's an indication that force must be zero.
"acceleration"
When the body is in simple hermonic motion
Let us suppose that the displacement is given by, x = kt2 , where k is constant of proportionality. Therefore, velocity of the body, v = dx/dt = d(kt2)/dt = 2kt Since, velocity depends on time ,the body is not moving with uniform velocity.... Again, acceleration of the body, a = dv/dt = d(2kt)/dt = 2k As the acceleration is independent of time , the body is moving with uniform acceleration..
The body which is subjected to centripetal acceleration undergoes uniform circular motion.
It moves with uniform acceleration due to gravity
The slope of a velocity-time graph that shows uniform acceleration is the actual acceleration. Instantaneous velocity is the velocity of a body at a particular moment in time.
Acceleration due to gravity is a uniform acceleration of 9.8m/s2.