With Respect to the Earth, Object 1 Is Moving at Speed

question 7

Multiple Choice

With respect to the earth, object 1 is moving at speed 0.90 c to the right. Object 2 is moving in the same direction at speed 0.70 c with respect to object 1. How fast is object 2 moving with respect to the earth?

• A)0.64 c
• B)1.6 c
• C)0.16 c
• D)0.80 c
• E)0.98 c

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