Question

spaceship Travels 36000 km in 1 hour express speed in kilometres and seconds

Answer 1

so
36000/3600
10km/sec
is your answer

Answer 2

Hey friend, Harish here.

Here is your answer.

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 Distance traveled = 36000 Km

Time taken = 1 hr
                   = 60mins
                   = 60 × 60 = 3600 sec. 

$Speed = \frac{Distance}{timetaken}$
 
           $= \frac{36000}{3600}$
 
           $= 10 km/s$

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Hope my answer is helpful to u.