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Physics 25 Online
Biggsolo:

A space vehicle deploys its re–entry parachute when it's traveling at a vertical velocity of –150 meters/second (negative because the parachute is going down.) It comes to rest at 0 meters/second after 30 seconds. What's the average acceleration of the shuttle during this time span?

Mercury:

avg acceleration = (final velocity - initial velocity) / time

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