A train travels fairly large distances so kilometres would be an appropriate unit for length. Hours would be the best unit for time, so speed would be in kilometres per hour. We don't really metricate time in most applications.
The speed of light is 300,000,000 metres per second.
The two measurements needed to calculate the speed of an object in motion are distance traveled and the time taken to travel that distance. Speed is calculated as distance divided by time.
To calculate speed, you need distance and time measurements. The speed can be calculated by dividing the distance traveled by the time taken to travel that distance. It helps provide information about how fast an object is moving.
If two trains are passing each other the relative speed can be found by adding the individual speeds of the two trains. This applies if the trains are passing each other in opposite directions. Should one be passing the other and both be moving in the same direction, the difference of the individual speeds would be the relative speed of the trains.
distance travelled and time taken average speed = distance/time
Miles per hour or kilometers per hour
You use it to record measurements such as height or distance, speed or density, to convert from one set of units to another and to calculate the effect that one attribute (force) might have on another attribute (acceleration) of a third (mass).
There are too many measurements that wouldn't have to be made in order to calculate an average speed. The only measurements that would matter in the most general example are the distance travelled and the time it took.
She obtained the average speed of the three measurements.
Yes and no. The metric system is a decimalized system of measurements that was developed in contrast to "Standard" or "English" measurements where conversions are more difficult to calculate. The principal unit of the metric system is the meter, a unit of length. Other units are based on the meter: Volume: a liter is 1/1000th of a meter cubed Mass: a kilogram is (basically) the mass of one liter of water Speed: measured in terms of meters per second or kilometers per hour etc.
speed trains and trains to transport people
Average measured speed.