Question

If the orbital velocity of a satellite is 2 rad/s then what will be the period of satellite.

Select one:

a. 2 sec

b. 3.14 sec

c. 6 sec

d. 8 sec​

Answer 1

Using the orbital velocity as deg/time or the angular speed:

1 rev / sec = 2 * pi rad / sec since there are 2 pi rad in a revolution

2 rad/sec = 1 / pi rev/sec = f from above

P = 1 / f = pi sec/rev = 3.14 sec/rev