![]() ![]() It a particle starts from some point and returns to the same point, via any path, average velocity in this trip will be zero. It depends only on the initial and final position of the particle since it depends on displacement. The average velocity of a particle for a given interval of time is defined as the ratio of its displacement to the time taken.Īverage velocity is independent of path taken between any two points. It is defined as rate of change of particle position with time Instantaneous velocity of a particle is velocity at a particular instant of time. At 0 0 the average speed is maximum (v 0) and at 0 90 it is minimum (v 0 /2). Velocity is speed plus a specifed direction, and it is much more. According to Equation (16), the average speed of a projectile in the absence of air resistance varies between v 0 and v 0 /2 depending on the launch angle 0. 50 miles per hour could mean 50 miles per hour north, south, east or west. Speed is a scalar quantity, meaning that it doesnt have a direction. It is defined as the rate of change in displacement with respect to time. SpeedDistance/Time So if you divide the distance in km by the time in hours you get speed in km/h or if you divide the distance in m by the time in seconds you get speed in m/s etc. The average speed of a particle is defined as ratio of total distance travelled to the total time takenĪverage speed is harmonic mean of individual speeds. Speed : It is defined as the rate of change of distance, with respect to time. Formula For Speed and Velocity Physics Formulas ![]()
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