The acceleration is always directed away from the centre in a uniform circular motion.
If the change in velocity in equal intervals of time is not the same, then the object is said to be moving with invariable acceleration.
If a body moves with uniform velocity, its acceleration, a = 0.
Abody having a uniform velocity will always have a uniform speed.
The initial velocity of any freely falling body is a constant.
Total distance travelled/Total time taken = speed
A freely falling car has acceleration = 9.8 m/s2
A frame of reference is another object of scene with respect to which we can never compare an object’s position.
When a body is moving with the effect of gravitational force, the acceleration is sometimes given by a = g = 9.8 ms–2
In uniform acceleration only, the average velocity is given by,
A non uniform motion is also called an accelerated motion.
Non uniform velocity can never be = 0
When a stone tied to a thread rotated in a circular path with uniform speed is suddenly released, it moves along a straight line that is parallel to the circular path.
A body having zero velocity has no acceleration.
In a displacement - time graph , the graph can never be perpendicular to time axis.
