What is the formula?
By keljad
@keljad (69)
Australia
November 8, 2006 7:18am CST
I am looking for the formula to solve the problem A jet touches down at 300km/h if it continued at that speed for 12 seconds the distance travelled would be? In metres
4 responses
@redyellowblackdog (10629)
• United States
8 Nov 06
The formula is rate multiplied by time= distance. However, in the question and the desired answer is a difference in units of measure.
Therefore, the first step in solving your question is to convert the problem to the same units of measure as what you want in your answer. There is also not the same units of time in the question. eg. 300 km per hour vs 12 seconds.
So, we must be convert 300 km/h to meters per second.
300 km= 300 X 1000= 300,000 meters
The next step is to convert hours to seconds.
1 hour in seconds= 1 X 60 minutes X 60 seconds= 3600 seconds in an hour.
Next:
300 km/hour= 300000 meters/hour
300000 meters/hour= 300000/(3600 seconds)
300000/(3600 seconds)= 83.33333... meters/second
83.33333... meters/second= 300 km/hour
83.33333... X 12= 1000 meters
@redyellowblackdog (10629)
• United States
8 Nov 06
Formulas for time?
Not sure if I know what you mean, but....
60 seconds = 1 minute
60 minutes = 1 hour
24 hours = 1 day
7 days = 1 week
52 weeks = 1 year
365 days = 1 year
Is that what you want?
@newcreativity (1009)
• India
8 Nov 06
I do agree with redyellowblackdog,because the quantities on the problems has to be the same,first of all km/hr has to converted to m/s ,once it is done,then the problem become simple.Just multiply the speed with time that makes the distance covered by the jet plane in 12 seconds.
