An astronaut with a mass of #70 kg# is floating in space. If the astronaut throws an object with a mass of #8 kg# at a speed of #7/6 m/s#, how much will his speed change by?
1 Answer
Jul 25, 2017
I tried this:
Explanation:
We can use conservation of momentum before (throwing the object) and after (throwing the object) assuming that at the start the astronaut was at rest.
we get:
or:
i.e. the speed of the astronaut will increase of