A84.5 kg astronaut is working on the engines of a spaceship that is drifting through space with a constant velocity. the astronaut turns away to look at earth and several seconds later is 38.9 m behind the ship, at rest relative to the spaceship. the only way to return to the ship without a thruster is to throw a wrench directly away from the ship. the wrench has a mass of 0.613 kg, and the astronaut throws the wrench with a speed of 24.9 m/s. how long does it take the astronaut to reach the ship? answer in units of s.

215.35736 seconds

Explanation:

= Mass of astronaut = 84.5 kg

= Mass of wrench = 0.613 kg

= Velocity of astronaut

= Velocity of wrench = 24.9 m/s

In this system the linear momentum is conserved

Time is given by

The time it will take the astronaut to get back to the ship is 215.35736 seconds

unlike poles attract

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explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."