Question

An artuficial satellite orbuts in a circular path .the height ofthe satellitefrom the surface of the earth is 36000 km. when tha satellite is exactly vertically upwards ground station it sends a signal . how much time will the signal take to reach the ground atation . the speed of signal is 3×108 ms-1

Answer 1

Distance = 36000000m
speed3×10^8 m/s
time=?
$\frac{36000000}{3 \times 10 {}^{8} } \\ \frac{36000000}{300000000}$
0.12 s