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4. 2D Kinematics
4. 2D Kinematics / Velocity in 2D / Problem 5

The horizontal and vertical components of the velocity of an ice skater performing in a horizontal frictionless arena are shown in the figure below. At t = 0 s, the ice skater's initial position vector is r0 = 0 î + 0 ĵ. Determine the direction of the velocity vector of the ice skater with respect to the positive horizontal direction at time t = 3 s.


Graph showing horizontal velocity of an ice skater over time, constant at -3 m/s.Graph showing vertical velocity of an ice skater decreasing over time, starting at 5 m/s.

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