An object travels North at # 8 m/s# for #3 s# and then travels South at # 7 m/s# for # 8 s#. What are the object's average speed and velocity?
1 Answer
Average Speed
Average Velocity
Explanation:
Total distance travelled- which is independent of the direction of motion- in
Average speed
The two components of the final displacement,
Hence, directly apply the Pythagorean theorem to find the
displacement from the initial position after
#=sqrt((8*3)^2+(7*8)^2)=8sqrt(58)color(white)(l)"m"#
Average velocity