Question
An artificial satellite is moving in a circular orbit of radius 4200 km around the earth. What is its speed if it takes one day to complete one revolution?
Answer: Option C
:
C
Given, the radius of the orbit, R=4200 km
The time taken to revolve around the Earth, T=24 hr (1 day)
The speed of the satellite, v=Circumference of the orbitTime taken
=2πRT
=2×3.14×4200 km24 hr
=1099 km hr−1
=1099 kmph
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:
C
Given, the radius of the orbit, R=4200 km
The time taken to revolve around the Earth, T=24 hr (1 day)
The speed of the satellite, v=Circumference of the orbitTime taken
=2πRT
=2×3.14×4200 km24 hr
=1099 km hr−1
=1099 kmph
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