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

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

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