Suppose an astronaut is aboard a spaceship that is passing Earth at 80% of the speed of light. The astronaut sees a clock on Earth tick off 5 seconds. How much time elapses on the astronaut's own clock while this is happening?
A) 5 seconds-the same as on the ship's clock
B) more than 5 seconds
C) more than 5 seconds if the astronaut is approaching Earth and less than 5 seconds if the astronaut is moving away from Earth
D) less than 5 seconds

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The Answer of Suppose an astronaut is aboard a spaceship that is passing Earth at 80% of the speed of light. The astronaut sees a clock on Earth tick off 5 seconds. How much time elapses on the astronaut's own clock while this is happening?
A) 5 seconds-the same as on the ship's clock
B) more than 5 seconds
C) more than 5 seconds if the astronaut is approaching Earth and less than 5 seconds if the astronaut is moving away from Earth
D) less than 5 seconds

Suppose an Astronaut Is Aboard a Spaceship That Is Passing