It is positive when the displacement is positive(i.e., when the particle moves in the direction of increasing position co-ordinate) and negative when the displacement is negative. It can have positive, negative or zero value. The SI unit of velocity is metre/second and its dimensional formula is If x 1 and x 2 are the position coordinates of a particle in uniform motion at the instants t 1 and t 2 respectively, its velocity is given by, The velocity of a moving particle is the distance travelled by it in unit time in a given direction, or in other words, velocity is the rate of displacement of a body. What does velocity mean and what is the formula to find velocity? If a particle covers a distance d 1 with a speed s 1 and then d 2 with s 2 ,.If a particle travels with a speed s 1, for a time interval t 1 and with a speed s 2 for a time interval t 2,.The ratio of total distance travelled by a body to the total time taken is called average speed. The speed of an object at a particular instant of time is called its instantaneous speed. If the body covers equal distances in unequal intervals of time, it is said to be moving with variable speed. If a body covers equal distances in equal intervals of time, it is said to be moving with uniform speed. Different types of speedīasically, there are four different types of speed in physics and each are explained below: Hence speed is a scalar quantity and it can never be a negative value. The direction of motion is not considered. Speed gives only a quantitative idea about how fast or how slow an object is moving. The SI unit of speed is metre/second and its dimensional formula is Speed of a particle is defined as the distance covered by it in unit time or it is the time rate of change of distance.
What does speed mean and what is its formula?
Write the difference between speed and velocity in tabular form.Variable velocity or non-uniform velocity.What does velocity mean and what is the formula to find velocity?.What does speed mean and what is its formula?.