IB Physics HL A 2 20 Elastic and Inelastic Collisions Topic Practice

CourseCourseConceptConceptDocsDocuments

Learn this topic

Study A.2.20—Elastic and inelastic collisions conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

Question 1

[Maximum number: 2]

This question is in two parts. Part 1 is about momentum and energy. Part 2 is about the de Broglie hypothesis and radioactive decay.

Jane and Joe are two ice skaters initially at rest on a horizontal skating rink. They are facing each other and Jane is holding a ball. Jane throws the ball to Joe who catches it. The speed at which the ball leaves Jane, measured relative to the ground, is 8.0 ms−18.0 \mathrm{~ms}^{-1}. The following data are available.

 Mass of Jane =52 kg Mass of Joe =74 kg Mass of ball =1.3 kg\begin{aligned} & \text { Mass of Jane }=52 \mathrm{~kg} \\ & \text { Mass of Joe }=74 \mathrm{~kg} \\ & \text { Mass of ball }=1.3 \mathrm{~kg} \end{aligned}

Use the data to calculate the

speed V of Joe relative to the ground immediately after he catches the ball.

All question bank results loaded