The dimensional formula for impulse is_______

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].