Answer: 3056N
Explanation:
Torque =rF
Since left side of the torque=right side of the torque
1.1(5000-x)=(1.8-1.1)(x)
x(weight of the front side), x=3055.56
Fraction of the horses weight = (weight of the front side)/(total weight)
1.8m/1.1m = 1.636m
Then, 5000N/1.636m =3056N