An Astronaut Aboard a Spacecraft Enroute to Mars with a Speed

question 16

Multiple Choice

An astronaut aboard a spacecraft enroute to Mars with a speed of 0.5c relative to Earth observes a meteor approaching head on at a speed of 0.9c.What is the speed of the meteor relative to Earth?

• A)1.4c
• B)-0.73c
• C)0.4c
• D)2.55c
• E)None of these is correct.