Physics

Problem

A test track features a circular turn of radius

50\,\text{m}

that is banked at an angle of

15^{\circ}

. What speed should a vehicle maintain to follow the turn without any assistance from friction? a)

8.6\,\text{m}\!\cdot\!\text{s}^{-1}

43\,\text{m}\!\cdot\!\text{s}^{-1}

11.5\,\text{m}\!\cdot\!\text{s}^{-1}

23\,\text{m}\!\cdot\!\text{s}^{-1}