state units of speed briefly
Answers
Answer:
SI unit of Speed can be derived from the formula of velocity. Basically, velocity is the vector equivalent of speed. Mathematically velocity is given as the ratio of displacement to the time taken.
v=dt
where,
d is the displacement measured using SI unit of distance; that is meter.
t is the time interval measured using the SI unit of time; that is seconds.
Here, we can see that length and time are base quantities, thus we can say that speed can be measured with the SI unit of length (meters) over the SI unit of time (seconds). Or in other words, to derive SI unit of velocity or speed we will simply substitute corresponding units in the formula of velocity.
SIunitofSpeed=metersecond
Hence, the SI Unit of speed is meter per second or m/s or m.s-1.
Dimensional Formula is M0.L1.T-1
Other Speed Units
However, to mention a few, there are other units of speed such as kilometers per hour, meters per second, feet per second, mach, miles per hour, rev, rpm, light-year, and knots.
Speed is a measure of how fast something is travelling. The most common units of speed are metres per second (m/s), kilometres per hour (km/h) and miles per hour (mph).