To solve this problem we will apply the given concept for torque which explains the relationship between the force applied and the distance to a given point. Mathematically this relationship is given as
[tex]\tau = F*d \rightarrow F = \frac{\tau}{d}[/tex]
Where,
[tex]\tau =[/tex] Torque
F = Force
d = Distance
Our values are given as,
[tex]\tau = 7.0Nm , d = 0.55m[/tex]
Therefore replacing we have that the force is
[tex]F = \frac{7}{0.55}[/tex]
F = 12.72N
Therefore the least amount of force that you must exert is 12.72N
