Classical Mechanics
# Vector Kinematics

A lady goes on a hike for \( 90 \text{ minutes}. \) Her average speed is \( 8 \text{ km/h}, \) and she hikes in a direction that makes a \( 60^\circ\) angle with the eastward and a \(30^\circ\) angle with the northward. Express her displacement using two direction components.

Assume that \( \sqrt{3}\) is approximately \(1.7. \)

A car drives straight off the edge of a cliff that is 80 m high. At the scene of the accident you note that the point of impact is 160m from the base of the cliff. How fast was the car traveling in m/s when it went over the cliff?

Consider \(g = 10 \text{ m/s}^2\)

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