Impulse = Force X Time
Hence, the dimensional formula for impulse is [M L T-1].
Impulse can be defined as the sudden force acting on an object for a short interval of time.
Dimensional formula of impulse
We know that the formula of force is given by
Impulse= Force X Time
Also from Newton’s second law of motion
Force = Mass X Acceleration
Hence the dimensional formula of force is M1 L1 T-2
On substituting the force dimensional formula in the formula of impulse we get,
Impulse = Force × Time
I = [M1 L1 T-2] × [T] = [M1 L1 T-1]
The impulse is dimensionally described as [M1 L1 T-1].