An angiogram is a test to find out which arteries supplying the heart have become narrowed. An angiogram uses X-rays to show ‘route maps’ of blood vessels and arteries in the heart. On the other hand, angioplasty is a procedure to expand narrow arteries that may follow on from an angiogram. In which cases is … Read more
The rate of change of the non-uniform velocity of a body with time is called its acceleration. If the velocity of the body is constant that is, the body travels the same distance for every per unit time, then there will be no change in velocity. So, the velocity will be uniform velocity. Otherwise, the … Read more
Distance is the length covered either in a straight or curved line. And distance is the initial and final position’s distance drawn in a straight line. So, if an object starts it motion and after covering a distance in a straight or curved line, but at last finishes at its initial point then the initial … Read more
Speed indicates only the rate of change of position with time, it does not indicate the direction of change of position. The velocity states the rate of change of position along with its direction that is, velocity means the rate of change of position in a definite direction or in other words the rate of … Read more
If the rate of increase of velocity of a moving body in a particular direction constant all the time, then the acceleration is said to be uniform. Due to gravity, the acceleration of a freely falling body is 9.8 ms-2, that is, its velocity increases by 9.8 ms-2 for each successive second. So, the acceleration of … Read more
Non-uniform acceleration takes place when the rate of increase of velocity changes with time. Also read
If the magnitude of speed does not change during the motion of the body, the speed of the body is called uniform speed. If a body doesn’t travel an equal distance in equal interval of time, the speed is called non-uniform speed. If the body doesn’t move with uniform speed, the speed obtained by dividing … Read more
Differences between velocity and speed. No. Velocity Speed 1 Rate of change of position of an object in a definite direction is called velocity. Rate of change of position of an object in any direction is called speed. 2 Velocity is a vector quantity. Speed is a scalar quantity. Also read