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

Objectives

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.

Prerequisites

Students should already be familiar with

integration of polynomial functions,
vectors.

Exclusions

Students will not cover

conservation of momentum,
elastic and inelastic collisions,
problems involving bodies with variable mass.

Lesson Video

Lesson Explainer

Sample Question Videos

06:07
06:48
06:16

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:

Three forces, , , and , where , , and are three mutually perpendicular unit vectors, acted on a body for 3 seconds. Find the magnitude of their combined impulse on the body.

Q3:

A constant force acted on a body of mass changing its speed from 9 m/s to 54 km/h. Given that the impulse of the force was 5.82 N⋅s, determine the value of .