Answer:
The dimensional formula for impulse is [M L T-1]
What is impulse?
Impulse in Physics is a term that is used to describe or quantify the effect of force acting over time to change the momentum of an object. It is represented by the symbol J and is usually expressed in Newton-seconds or kg m/s.
Impulse = Force X Time
Hence, the dimensional formula for impulse is [M L T-1].
Explanation
Impulse can be defined as the sudden force acting on an object for a short interval of time.
Dimensional formula of impulse
We know the formula
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].