An astronaut with a mass of #100 kg# is floating in space. If the astronaut throws an object with a mass of #2 kg# at a speed of #11/9 m/s#, how much will his speed change by?

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An astronaut with a mass of #100 kg# is floating in space. If the astronaut throws an object with a mass of #2 kg# at a speed of #11/9 m/s#, how much will his speed change by?

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Answer 1 · 2016-02-08T16:50:40

#Delta v=-0,0249 m/s#

Explanation:

#P_b=0; " total momentums before event"#
#P_a,P_o:" astronaut and object's momentums after event"#
#0=P_a+P_o#
#0=98*v_a+2*11/9#
#22/9=-98*v_a#
#v_a=-22/(9*98)#
#v_a=-0,0249 m/s#
#Delta v=-0,0249-0#
#Delta v=-0,0249 m/s#

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An astronaut with a mass of #100 kg# is floating in space. If the astronaut throws an object with a mass of #2 kg# at a speed of #11/9 m/s#, how much will his speed change by?

1 Answer

Explanation:

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