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

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explanation:

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