Question

what is the speed solve T=3 hr speed =? D=76 km​

Answer 1

Answer:

$speed = \frac{Distance travelled }{Time taken }$

$speed = \frac{d}{t}$

Kilometre should be converted into meter.

Distance travelled is measured in the term of meter.

$76 \times \frac{5 }{18} = 21.11 \: m$

3hour = 10800 seconds

$speed = \frac{21.11}{10800}$

$0.0019547$

$1.9 \times 10 {}^{ - 3} ms {}^{ - 1}$

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