By definition, the power is given by:
[tex] P = \frac{W}{t}
[/tex]
Where,
W: work done
t: time spent doing work
Therefore, substituting values we have:
[tex] P = \frac{860}{420}
P = 2.05 watts
[/tex]
Rounding the nearest whole we have:
[tex] P = 2 watts
[/tex]
Answer:
The power output of the horse is:
[tex] P = 2 watts [/tex]
