Lesson: Impulse and Momentum Mathematics

In this lesson, we will learn how to relate the impulse on a body to the change of momentum of the body.

Lesson Plan

Students will be able to

calculate the impulse of a constant force on a body,
calculate the impulse of a variable force on a body,
understand the relationship between impulse and the change in the momentum of a body,
understand the relationship between impulse, force, and time.

Lesson Presentation

Lesson Video

Lesson Explainer

Lesson Worksheet

Q1:

A constant force acted on a body of mass 6 kg. As a result, its speed changed from 37 km/h to 49 km/h. Calculate the magnitude of the impulse of this force on this body.

Q2:

A smooth sphere of mass 1,412 g was moving horizontally in a straight line at 13.5 m/s when it hit a smooth vertical wall and rebounded at 9 m/s. Determine the magnitude of the impulse exerted on the sphere.

Q3:

The given figure shows a force-time graph for a force acting in a constant direction on a body moving along a smooth horizontal plane. Using the information provided, calculate the magnitude of the force’s impulse.