Impulse Formula: Definition, Formula, and Solved Examples

Impulse Formula: Impulse is a fundamental concept in physics, describing the change in momentum of an object when subjected to a force for a certain amount of time. This concept is crucial in understanding the dynamics of motion and how forces affect objects. In this article, we will delve into the definition of impulse, explore the impulse formula, and work through solved examples to grasp this concept thoroughly.

Impulse (I) = Force (F) × Time (Δt)

Where:

Impulse Formula

Impulse (I) = Force (F) × Time (Δt)

1. Force (F): This is the magnitude of the force applied to an object. It can be exerted in various directions and can be constant or variable.
2. Time (Δt): This represents the duration during which the force is applied. The longer the force acts on the object, the greater the impulse.

Also Check - Electric Field Formula

Force and Impulse

Time and Impulse

Also Check - Horsepower Formula

Solved Examples of Impulse Formula

Solution:

I = 150 N × 0.2 s

I = 30 N·s

Solution:

I = 3000 N × 5 s

I = 15000 N·s

Solution:

I = 150 N × 0.2 s

I = 30 N·s

Solution:

I = 3000 N × 5 s

I = 15,000 N·s

Also Check - Normal Force Formula

Significance Of Impulse Formula

1. Understanding Motion: Impulse helps us understand how forces impact the motion of objects. It provides a clear relationship between force, time, and the resulting change in momentum.
2. Safety and Design: In engineering, it is used to design safety features in various applications, such as airbags in cars, to ensure that the force of impact is spread out over a longer time to reduce injury risk.