# 2D Motion – Physics 101 / AP Physics 1 Review with Dianna Cowern

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From Physics Girl.

Lesson 3 (2D Motion & Kinematics) of Dianna’s Intro Physics Class on Physics Girl. Never taken physics before? Want to learn the basics of physics? Need an AP Physics 1 review before the exam? This course is for you!

Exercises in this video:
Problem 1
You’re jumping off a 10m high cliff with an initial horizontal velocity of 2m/s. Some rocks extend 1m out at the base of the cliff. Will you clear the rocks? By how much?
Problem 2
Kick a ball at a speed of 20m/s at an angle 37º above the ground.
a. How long is the ball in the air?
b. How far away is the ball when it lands?
c. How high did the ball go?
Problem 3
Juliet throws an egg at Romeo’s window. The bottom of the window starts 6m above the ground, and the window itself is 1m tall. The egg leaves Juliet’s hand 1 m above the ground, traveling 30m/s at an angle of 60º with respect to the ground. Does she hit the window?

Executive Producer/ Host/ Writer: Dianna Cowern
Lead Writer & Course Designer: Jeff Brock
Producer: Laura Chernikoff
Video Editor: Spenser Reich
Researcher/Editor: Sophia Chen
Videographer: Levi Butner
Production Assistant: Hope Butner
Set Design: Lauren Ivy
Curriculum Consultants Lucy Brock & Samantha Ward
Consulting Producer: Vanessa Hill
Curriculum Consultant: Andy Brown
Skate Videographer: Darren Dyk
Consultant: Kyle Kitzmiller
Illustrator: Aleeza McCant
Transcription: Alicia Cowern & Cathy Cowern