# physics

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A 200.0 kg astronaut and equipment move with a velocity of 2.00 m/s toward an orbiting
spacecraft. The astronaut will fire a 100.0 N rocket backpack to stop his motion relative to
the spacecraft. (a) What acceleration is attained by the rocket backpack?

• physics -

(a) a = F/m = 100/200 = 0.5 m/s^2

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