Question

During an experiment, a signal from a spaceship reached the ground station in five minutes.What was the distance of the spaceship from the ground station? The signal travels at the speed
of light is, 3 x 108 ms -1.​

Answer 1

Explanation:

During an experiment a signal from a spaceship reached the ground station in five minutes. What was the distance (in m) of the space ship from the ground station? The signal travels at the speed of light that is, 3×108m/s3×108m/s.

A

6×10106×1010

B

9×10109×1010

C

9×1089×108

D

3×10103×1010

Solution

Let the distance between the spaceship and the ground station be 'SS' .

Then, S=vtS=vt

where, v=v= speed of signal =3×108m/s=3×108m/s

t=t= time taken =5min=5×60s=300s=5min=5×60s=300s

∴s=3×108×300=9×1010m∴s=3×108×300=9×1010m