A 140 kg astronaut (including space suit) acquires a speed of 2.56 m/s by pushing off with his legs from a 1730 kg space capsule. The change in speed of the space capsule is .207 m/s.(adsbygoogle = window.adsbygoogle || []).push({});

How would I find the change of momentum in the motion from above?

m1 = 140 kg astronaut

m2 = 1730 kg space capsule

v1 initial = astronaut 0

v2 initial = space capsule 0

v1 final = astronaut 2.56 m/s

v2 final = space capsule .207 m/s

would the change of momentum equal the following?

J (impulse)= pfinal - pinital

Momentum of Final...---------------------------------------------------

p1 = astronaut m1 x v1 final

140 x 2.56

358.4

p2 = space capsule m2 x v2 final

1730 x .207

358.11

pfinal about = 358

Momentum Initial --------------------------------------------------------

If i solved for the momentum using v1 inital and v2 inital then the momentum of both would be 0.

Pinitial = 0

Pf = 358

Pi = 0

J = 358 - 0

J = 358

Would 358 be the change of momentum in the motion above????

Does momentum have units?

Momentum is a vector quantity so therefore no units?

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# Homework Help: Change of Momentum

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