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Novay_Z [31]
3 years ago
10

A 67 kg astronaut floating in space throws a 4.2 kg rock at 5.6 m/sec. How fast does the astronaut move backward?

Physics
1 answer:
stiks02 [169]3 years ago
5 0
Law of conservation of momentum
67*x=4.2*5.6
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<h3><u>Answer;</u></h3>

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<h3><u>Explanation;</u></h3>
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  • If we are given the speed, then we can easily calculate the period at the wavelength of 20 m.

<em>Given the speed of sound wave as 340 m/s </em>

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3 years ago
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8 0
3 years ago
Read 2 more answers
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