science
Grade-7
Easy
Question
90 km/h = ___ m/s.
- 25
Hint:
25 meters per second
The correct answer is: 25
As we know
![1 K m equals 1000 space m
1 h equals 3600 space s
1 left parenthesis K m divided by h right parenthesis equals 5 divided by 18 left parenthesis m divided by s right parenthesis](data:image/png;base64,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)
and we have to find 90 Km/h, so
![90 K m divided by h equals 90 cross times 5 divided by 18 space m divided by s
space space space space space space space space space space space space space space space space equals 25 space m divided by s](data:image/png;base64,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)
90×1000=90,000
60×60=3600
=90000/3600
=25m/s
Question
Hint:
90×1000=90,000
60×60=3600
=90000/3600
=25m/s