When a body rotates about a particular point or a line, keeping the distance of the particles of the body unchanged, it is called circular motion. Earth revolves around sun as it crosses a specific point at specific time that is why earth’s motion is circular motion. Again, Periodic Motion If the motion of a … Read more
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.
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
The poles are closer to the center of the Earth due to the equatorial bulge, which strengthens gravitation at the poles and weakens it at the equator. The equatorial bulge modifies how the Earth gravitates. This is why the value of g is maximum in the polar regions.
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.