6. Some hikers travel 2 km north, turn toward the west and travel 4km, turn toward the south and
travel 6 km, then finally travel east for 4 km.
what is the displacement from the starting point.

the independent variable, or the one that is intentionally manipulated is the speed.

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

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