Taking the speed of the radio signal as 3×108 m/s, calculate the time taken for a signal to reach a GPS receiver from a GPS satellite at a position 21 000 km distant from the receiver. Assume that the speed of the signal is unchanged over the whole path length. Express your answer in milliseconds

asked by ahmad

8 years ago

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1 answer

d = V*t = 21*10^6 m.
t = 21*10^6/3*10^8 = 7*10^-2 s. = 70 ms.

answered by Henry

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Question

Taking the speed of the radio signal as 3×108 m/s, calculate the time taken for a signal to reach a GPS receiver from a GPS satellite at a position 21 000 km distant from the receiver. Assume that the speed of the signal is unchanged over the whole path length. Express your answer in milliseconds

1 answer

d = V*t = 21*10^6 m.
t = 21*10^6/3*10^8 = 7*10^-2 s. = 70 ms.

Henry · Answer

d = V*t = 21*10^6 m. t = 21*10^6/3*10^8 = 7*10^-2 s. = 70 ms.