Final answer:
The impulse response in differential equations is the sum of all the infinitesimal impulses given to an object when a force is applied over an infinitesimal time interval.
Step-by-step explanation:
The impulse response in the context of differential equations refers to the total impulse given to an object when a force is applied over an infinitesimal time interval. It is defined as the sum (integral) of all the infinitesimal impulses.