Question

Explain the uniform circular motion is the accelerated motion. Calculate the speed of the satellite moving in the circular orbit of radius 45000km to revolve in the time of 42 hours. ​

Answer 1

Distance covered by the satellite in 24 hours

s=2πr

=2×3.14×42250=265464.58 km

Therefore speed of satellite,

v=

time taken

distance travelled

=

24×60×60

265464.58

=3.07 km s

−1