If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

## High school physics

### Unit 7: Lesson 6

Angular momentum and angular impulse

# Angular momentum calculations

You might need: Calculator

## Problem

A 0, point, 10, start text, k, g, end text ball is thrown with a speed of v, equals, 2, point, 0, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction at a resting stick that can rotate around one end at axis O. The ball hits the stick at r, equals, 1, point, 5, start text, m, end text from O as shown below.
What is the angular momentum of the ball about axis O before hitting the stick?
Answer using a coordinate system where counterclockwise is positive.
Round answer to two significant digits.
start fraction, start text, k, g, end text, dot, start text, m, end text, squared, divided by, start text, s, end text, end fraction
Stuck?
Stuck?