Question

a satellite is moving in 36000km if it takes 24 hour what will be the speed?

Answer 1

Since it's a satellite in the question is it moving in a circular motion?

Answer 2

ALSO... Is the 36,000 km the radius of the orbit or is it the height of the satellite from
Earth's surface?

If it's the radius of the orbit, then ...
R = orbital radius = 36,000 km = 36,000,000 m

Since the orbit is specified as being circular, then ...
C = circumference = to be determined

C = 2πR
C = 2∙3.14159∙36,000,000 m
C = 226,194,671 m

t = 24 h = 24∙3,600 s = 86,400 s

s = speed = to be determined
s = C/t
s = 226,194,671 m / 86,400 s
s = 2,618 m/s = 2.6 km/s ANSWER

If it's the height of the satellite from Earth's surface, then...
h = height from Earth's surface = 36,000 km = 36,000,000 m
r = radius of Earth = 6,371 km = 6,371,000 m
R = total orbital radius = to be determined

R = r + h = 6,371,000 m + 36,000,000 m
R = 42,371,000 m

Since the orbit is specified as being circular, then ...
C = circumference = to be determined

C = 2πR
C = 2∙3.14159∙42,371,000 m
C = 266,224,845 m

t = 24 h = 24∙3,600 s = 86,400 s

s = speed = to be determined
s = C/t
s = 266,224,845 m / 86,400 s
s = 3,081 m/s = 3.1 km/s ANSWER