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A car traveling with constant speed travels 150 in two hours. What

0 votes

February 20th, 2013 07:02
in Physics by rubytuesday (Princeton University (NJ), Biology)

A car traveling with constant speed travels 150 in two hours. What is the speed of the car?

"You can enter units that are combinations of units with prefixes. However, you must maintain the same unit system given in the problem. For example, this question uses the SI unit system. Therefore an answer in U.S. customary units, such as miles per hour would not be accepted as correct.

 

P.s( I know you divide the distance by the time but for some reason i can't enter the answer properly with the units)"

6 Answers
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February 25th, 2013 07:35
ralphie (University of Cambridge, Microbiology)
    "the problem is that ""150"" has no units, so this can't be done as is. IF that is 150 meters, then the speed is 150 m / 2 hours = 75 m/hour there are many many different units you could use 75 m/hour x 1 hour/3600s = 0.0208 m/s 0.0208 m/s x 1000mm/m = 20.8 mm/s 75 m/hour x 1km/1000m = 0.075 km/hour (I can go on for a long time, with permutations of m, km, mm, µm, nm, seconds, hours, minutes) IF that is 150 km, there are another whole set of possible answers 75 km/hour 75000 m/hour 20.8 m/s 20800 mm/s etc"

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April 16th, 2013 07:38
padmini (Birla Institute of Technology and Science, Computer sciences)
    Constants have a very repaired profit any time hard-boiled isn't modified or possibly light beam-described. You possibly can specify how much constants making use of accessibility-modifiers.

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April 16th, 2013 10:10
parnavi (Bengal Engineering & Science University, Computer sciences)
    Steadfastness as well as firmness in your mind (as below hardship, discomfort, or perhaps battling). Fortitude or endurance, Faithfulness, Commitment, love, Stability and also Uniformness.

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April 23th, 2013 12:50
gajjdant (Bengal Engineering & Science University, Electrical Engineering)
    Constants are the nomenclature inside the algebraic expression who have only results. And that is, there're the particular ailments without having specifics. Most of us call them constants because their relevance by no means improvements, with there being simply no variables within period that could enhance the value. ...

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April 25th, 2013 09:08
savitri_122 (Biju Patnaik University of Technology, Rourkela, Aerospace engineering)
    Specifics which are avoided by different

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May 6th, 2013 13:55
aarif (Central University of Jammu and Kashmir, Electronics)
    Over and above your 14 cosmetic foundations, you should use constants within formulation. Fundamentally, constants execute a comparable act as play blocks, which represents a celebration stringed through which each and every gain access to is really a frosty measure.

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