An object travels North at # 5 m/s# for #2 s# and then travels South at # 1 m/s# for # 4 s#. What are the object's average speed and velocity?

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Answer 1 · 2016-04-28T13:12:46

#"speed="7/3 m/s#
#"velocity="1 m/s#

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#"total distance=AB+CD=10+4=14 meters"#
#"total time=2+4=6 s"#

#"speed="("total displacement")/("total time")#

#"speed="14/6#

#"speed="7/3 m/s#

#"velocity="("displacement")/("total time")#

#"velocity="=6/6#

#"velocity="1 m/s#