As Measured from the Earth,a Spacecraft Is Moving at Speed

question 58

Multiple Choice

As measured from the Earth,a spacecraft is moving at speed 0.80c when it releases a probe at speed 0.60c relative to the spacecraft in a forward direction.What would be the speed of the probe as measured from the Earth?

• A)0.70c
• B)0.81c
• C)c
• D)0.95c

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