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Ch 04: 2D KinematicsWorksheetSee all chapters

# Velocity in 2D

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Sections
Intro to Motion in 2D: Position & Displacement
Velocity in 2D
Acceleration in 2D
Kinematics in 2D
Intro to Relative Velocity

Concept #1: Average Speed and Velocity in 2D

Practice: While following a treasure map, you start at an old oak tree. You first walk 85 m at 30.0° west of north, then walk 92 m at 67.0° north of east. You reach the treasure 2 minutes later. Calculate the magnitude of your average velocity for the entire trip.

Practice: While following a treasure map, you start at an old oak tree. You first walk 85 m at 30.0° west of north, then walk 92 m at 67.0° north of east. You reach the treasure 2 minutes later. Calculate your average speed for the entire trip.

A) 1.5 m/s
B) 177 m/s
C) 88.5 m/s

Concept #2: Calculating Velocity Components

Practice: A coastal breeze pushes your sailboat at constant velocity for 8 min. After checking your instruments, you determine you’ve been pushed 650 m west and 800 m south. What was the magnitude & direction of your average velocity?

Practice: A ball moves on a tabletop. The ball has initial x & y coordinates (1.8m, 3.6m). The ball moves 10m/s at 53.1° above the x-axis for 4s. What are the x & y coordinates of the ball’s final position?