# From the spacecraft, moving away from the Earth at a speed of 0.75s, a rocket starts in the direction

From the spacecraft, moving away from the Earth at a speed of 0.75s, a rocket starts in the direction of the spacecraft movement. The rocket speed relative to the Earth is 0.96 s. What is the speed of the rocket relative to the ship?

The spacecraft moves away from the Earth at a speed of 0.75 s, the rocket moves in the opposite direction at a speed of 0.96 s.

In order to calculate the speed of the rocket relative to the ship, add the speed of the ship to the speed of the rocket

0.75s + 0.96s = 1.71s.

Answer: the speed of the rocket moving away from the ship, relative to the ship itself, is 1.71C.

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