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The odometer of a car reads …

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The odometer of a car reads 2000 kilometre at start of a trip and 2400 kilometre at end of a trip . If trip took 8 hour . Calculate the average speed in km/h and m/s .

Posted by Rishikesh Patidar 4 years, 2 months ago

CBSE > Class 09 > Science

2 answers

Gaurav Seth 4 years, 2 months ago

Given :

Initial odometer reading=2000km
Final odometer reading=2400km
Total distance= Final distance- Initial distance
=2400-200=400km
Total time=8h
Average speed =?

Formula to be used :
Average speed= Total Distance/Total time

Average speed in Km/hr:
Average speed=400/8
=50 km/hr

Average Speed in m/s:
1km/hr=5/18 m/s
∴50km/hr=50x5/18=250/18=13.88m/s

Yogita Ingle 4 years, 2 months ago

Initial odometer reading=2000km
Final odometer reading=2400km
Total distance= Final distance- Initial distance
=2400-200=400km
Total time=8h
Average speed =?

Formula to be used :
Average speed= Total Distance/Total time

Average speed in Km/hr:
Average speed=400/8
=50 km/hr

Average Speed in m/s:
1km/hr=5/18 m/s
∴50km/hr=50x5/18=250/18=13.88m/s

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