IB skill practice

Use impulse and momentum conservation

Paper 1, Paper 2 5 marks Difficulty 5

Impulse from momentum change

A cart of mass \(0.4\,\text{kg}\) in a warehouse cart audit changes speed from \(4\,\text{m s}^{-1}\) to \(12\,\text{m s}^{-1}\). Calculate the impulse. Identify the force, momentum, or energy relationship before entering the result. Enter the numerical result and choose the interpretation that matches the mechanics meaning.

Worked practice: physics data and result

Read the physical quantities first, then calculate the result and state what it means.