The dimensional formula for ML2T-2 represents the dimensions of a physical quantity. Let's break it down:
M represents mass, which has the dimension of [M]. L represents length or distance, which has the dimension of [L]. T represents time, which has the dimension of [T].
The exponent of 2 for L indicates that the quantity has a squared dimension in length.
The exponent of -2 for T indicates that the quantity has a negative squared dimension in time.
Combining these dimensions, the dimensional formula for ML2T-2 is:
[M] [L]2 [T]-2
So, the quantity represented by ML2T-2 has the dimensions of mass [M], length squared [L]2, and time to the power of negative two [T]-2.