A horse canters away from its trainer in a straight line, moving 140 m away in 10.0 s. It then turns abruptly and gallops halfway back in 4.9 s.(adsbygoogle = window.adsbygoogle || []).push({});

(a) Calculate its average speed.

(b) Calculate its average velocity for the entire trip, using "away from the trainer" as the positive direction.

I got a right by Vavg=(V+Vo)/2 [(140/10)+(70/4.9)]/2 and got 14.14 m/s.

so I was thinking that for part B it would be [(140/10)-(70/4.9)]/2 and got -.143... and it is wrong...

can anyone help me?

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# Horse Motion Problem

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