The dimensional formula for force couple is

Solution:

A force couple produces torque. The dimensional formula for torque is the product of force and perpendicular distance.

Dimensional formula of Force (F) = [MLT⁻²]

Dimensional formula of Distance (r) = [L]

Dimensional formula of Torque (τ) = Dimensional formula of Force × Dimensional formula of Distance

τ = [MLT⁻²] × [L]

τ = [ML²T⁻²]

Therefore, the dimensional formula for force couple is [ML²T⁻²].