15.2 Impulse is a Vector

TL;DR

Impulse is the change in momentum of an object and can be calculated using an integral of force over time.

Transcript

We would now like to use Newton's second law to relate impulse to change in momentum. So again, let's look at our set up. We have an object m, a velocity V, and, let's say, here the picture as t initial. And we have some initial velocity. And then a little bit later in time, we have time t final. The moment the velocity has changed. And that's beca... Read More

Key Insights

• 🟰 Impulse is a vector quantity and is equal to the change in momentum.
• ⌛ The integral of force over time is used to calculate impulse.
• 💱 Impulse causes the momentum of an object to change.
• 👮 Newton's second law can be applied to relate impulse and change in momentum.

Questions & Answers

Q: What is impulse?

Impulse is the change in momentum of an object and is equal to the integral of force over time.

Q: How can impulse be calculated?

Impulse can be calculated by finding the difference between the final and initial momentum of an object.

Q: What is the relationship between impulse and change in momentum?

Impulse causes the momentum of an object to change, and the change in momentum can be calculated using impulse.

Q: What is the significance of Newton's second law in relation to impulse and change in momentum?

Newton's second law states that force causes the momentum of an object to change, which is the basis for understanding impulse and change in momentum.

Summary & Key Takeaways

• Newton's second law can be used to relate impulse to the change in momentum of an object.

• Impulse is equal to the integral of force over time.

• Impulse causes the momentum of an object to change.