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ARC-Challenge / Mercury_409115 / When a person parachutes from a plane, she travels at about 67 meters per…

Problem

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question

When a person parachutes from a plane, she travels at about 67 meters per second. When she pulls her cord and her chute opens, she slows to about 3 meters per second. If the velocity and acceleration are both considered positive before the chute opens, how do her velocity and acceleration change when the chute opens?

choices

Velocity and acceleration both remain positive.
Velocity and acceleration both become negative.
Velocity remains positive but acceleration becomes negative.
Velocity becomes negative but acceleration remains positive.

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Source and history

upstream_id / Original problem ID: Mercury_409115
task_id: b506cebd-8272-5cd8-8d44-91dc877dfe5f
task_key: ARC~2dChallenge--test--Mercury~5f409115
task_revision_id: 2
config / split: ARC-Challenge / test

Official source

initial import