Question

An object travels North at `8 m/s` for `3 s` and then travels South at `7 m/s` for `4 s`. What are the object's average speed and velocity?

Answer 1

0,57 m/s

Explanation:

You must calculate the actual distance from the initial and final points ( 4m South = 7m/s x 4s South - 8mM/s X 3s North ), the total time needed (3+4 =7 s) and calculate the average speed by dividing space and time (4m)/(7m/s) = 0,57 m/s