Physics

Problem

A ball is thrown vertically upward with speed

20\,\text{m/s}

. Neglecting air resistance and taking

g = 10\,\text{m/s}^{2}

downward, which expression gives the maximum height

H

reached by the ball? a)

H = \dfrac{20^{2}}{10}

H = \dfrac{3 \times 20^{2}}{2 \times 10}

H = \dfrac{20^{2}}{2 \times 10}

H = \dfrac{20}{10}