1. You will have a uniform acceleration of about 9.8 meters/second2 when an object is in free fall near the Earth's surface - for example, when you drop an object, and air resistance can be ignored.
2. Any situation where the force is constant.
3. Uniform acceleration is often assumed for simplicity, for example, when accelerating a car.
in the case of an elevator
If the graph of speed versus time is a straight line, then the acceleration is constant/uniform. If the graph is curved or has a sharp corner, the acceleration is non-uniform, i.e. not constant. A uniform acceleration means the speed changes by fixed amount every unit of time, e.g. +3 m/s every second.
No, uniform angular velocity means no angular acceleration.
A roller coaster
yes, acceleration is constant in uniform circular motion
For uniform motion, the acceleration is zero. For non-uniform motion, the acceleration is something different than zero - at least, most of the time.
Acceleration due to gravity is a uniform acceleration of 9.8m/s2.
There are several formulae that involve uniform acceleration. For example, the definition of uniform acceleration:dv/dt = c or: a = c (where "c" is some constant).
"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 graph of speed versus time is a straight line, then the acceleration is constant/uniform. If the graph is curved or has a sharp corner, the acceleration is non-uniform, i.e. not constant. A uniform acceleration means the speed changes by fixed amount every unit of time, e.g. +3 m/s every second.
Freely falling body is a good example
Uniform (or constant) acceleration means that the acceleration doesn't change over time.
No. Acceleration is towards the center of the movement, in other words, the acceleration vector changes all the time.
Find out the time using speed and acceleration, (time=speed/acceleration) and then use it to find out uniform velocity. From that find out uniform acceleration. (as uniform acceleration is equal changes of velocity over equal intervals of time)
Uniform acceleration motion is a type of motion where the acceleration value is constant.
No, uniform angular velocity means no angular acceleration.
A roller coaster
Uniform acceleration means that the acceleration doesn't change over the course of time (of the time considered for a certain problem, at least).