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