The medical name for blood in the urine is haematuria. If blood in the urine is obvious with the naked eye, it is called macroscopic, or visible haematuria. If the blood can only be detected with laboratory testing, it is called microscopic, or non-visible.
This is not a new kind of force; it is merely force as applied in circular or rotational motion, and it is absolutely essential. Hence, physicists speak of a centripetal force requirement: in the absence of centripetal force, an object simply cannot turn. Instead, it will move in a straight line.
The force that pulls an object out of a straight-line path and into a. circular path is called a centripetal force. The magnitude of the centripetal force required to keep an object in a circular path depends. on the inertia (or mass) and the acceleration of the object, as you know from the second law. (F = ma). The acceleration of an object moving in uniform circular motion is a = v2/r, so the. magnitude of the centripetal force of an object with a mass (m) that is moving with a velocity (v) in a. circular orbit of radius (r) can be found from. The distance (circumference) around a circle is 2Ïr.