A horse trots away from its trainer in a straight line. moving 38 m away in 9.0 s. It then turns abruptly and gallops halfway back in 1.8 s. Calculate its average speed and average velocity?

Average speed = Distance : Time

Distance = 38 m + 1/2 of 38 m = 38 + 19 = 57 m

Time = 9 + 1.8 = 10.8 s

Average speed = 57/10.8 = 5.277 m/s

Average Velocity = Displacement : Time

Displacement = 19m

Time = 9 + 1.8 = 10.8 s

Average velocity = 1.759 m/s