Physics

Problem

A ball is projected vertically upward with an initial speed of

20\,\text{m}\,\text{s}^{-1}

. Calculate the maximum height it reaches. (Take

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

.) a)

80\,\text{m}

40\,\text{m}

20\,\text{m}

10\,\text{m}