The time rate of change of position of the object in any direction is called the speed of the object.
Its unit is m/s. It is a scalar quantity.
Its dimensional formula is [M0 T-1].
If an object covers equal distances in equal intervals of time, then its speed is called uniform speed.
Non-Uniform Speed or Variable Speed:
If an object covers unequal distances in equal intervals of time, then its speed is called non-uniform or variable speed.
The ratio of the total distance traveled by the object to the total time taken is called the average speed of the object.
If a particle travels distances s1 , s2 , s3 …sn with speeds v1 , v2 , v3 …vn then
If particle travels equal distances ( s1 = s2 = s) with velocities v1 and v2 , then
If a particle travels with speeds v1, v2, v3 …vn, during time intervals t1, t2, t3 …tn then
If particle travels with speeds v1 and v2 for equal time intervals, i.e., t1 =t2, =t3 then
When a body travels equal distance with speeds v1 and v2 the average speed (v) is the
harmonic mean of two speeds.
When an object is traveling at a variable speed, then its speed at a given instant of time is called its instantaneous speed.
We are sorry that this post was not useful for you!
Let us improve this post!
Tell us how we can improve this post? Please mention your Email so that we can contact you for better feedback.