Physics

Problem

Which one of the following gives the total time of flight for a ball thrown vertically upward with initial speed

u

and returning to the thrower’s hand (take acceleration due to gravity as

g

acting downward)? a)

t = \dfrac{u}{g}

t = \sqrt{\dfrac{2u}{g}}

t = \dfrac{2u}{g}

t = \dfrac{u^{2}}{2g}