Question: While at rest during a spacewalk, an astronaut is 11m from an entrance to the space station. To reach the entrance, she faces away from

  1. While at rest during a spacewalk, an astronaut is 11m from an entrance to the space station. To reach the entrance, she faces away from the entrance and throws a 0.500 kg wrench directly in front of her at a speed of 25.3 m/s. The astronaut and her space suit combined mass of 115 kg. a)What is the astronaut's momentum and speed after the throw? b)How long will it take the astronaut to travel the 11m to the space station?

I need to solve using the GRASS method, but I am having difficulties, because I don't know if the answer is negative or positive.

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