![]() In Rotational motion, the object moves along a circular path about a fixed axis. For example, the motion of Areoplane, birds, bees, etc is considered to be translational motion. In Translational motion, the object is free to move and can move in any of the three (x, y, z) directions. It can be either in the x-direction or in the y-direction or in the z-direction.įor example the motion of ants on the edge of the knife and others. ![]() Linear motion is a specific type of translational motion where the body moves only in one single direction. There are various kinds of motion and different kinds of motion are explained below in this article, The motion of an object depends on the force acting on the body. It is also measured in other units such as minutes(m), hours(hr), etc. ![]() unit for time is the second, abbreviated as s. The criteria for evaluation that time has passed is the modification in any object. Time is referred to as the interval over which any object undergoes modifications in its motion, orientation and structure. Time is an important frame of reference to evaluate the change in state and motion of the objects. Hence, the unit of velocity is m/s and the dimensional formula is LT -1 Time Hence, the unit and dimension formula of velocity is same as that of speed. Velocity is nothing but speed in a particular direction. Velocity is defined as the rate of change of displacement per unit time. ![]() Unit of Speed in different systems is different system as shown below: CGS systemĭimensional formula for Speed is. The speed of a body is considered to be a scalar quantity, with only magnitude and no associated direction. Speed is measured as the ratio of the distance covered by an object to the total time to cover this distance. Speed can be defined as the rate of change of position of an object moving in any direction. Displacement is always indicated with an arrow. Therefore, it does not provide complete information on the route. Displacement is independent of the path and only depends upon the initial and final position of the body. The displacement of an object between any two points is considered to be positive, negative, and even zero. Displacement, therefore, may refer to displacement as a vector quantity, with both an associated magnitude and direction. The distance is denoted by the symbol ‘d’.ĭisplacement is the direct length of the minimum path between any two successive points. Since the distance between two points is equivalent to the path length, it can be measured across different trajectories, that is, linear or zigzag paths. The distance of a body gives the descriptive route information being followed by an object from one point to another. Therefore, the distance is always positive in nature. The distance is a scalar quantity, with only magnitude and no associated direction. There are four main parameters that affect the motion of the objects they are:ĭistance is used to refer to the complete path length between any two successive points. The car, bikes, people, and other things around us also move. Several things around us move like Earth which appears to be still but is always in motion. The change in the position of the object, with respect to time, is considered motion. Role of Mahatma Gandhi in Freedom StruggleĪny movement done by the object can be found by comparing the new position and the original position of the object.
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