Question

 A ball is thrown vertically upward with a speed of 15 m/s. Determine the time of flight when it 

returns to its original positio

Answer 1

$u = 15\textsf{ m/s} \\ g= 9.8\textsf{ m/s}$

$T = \dfrac{2u}{g} =\dfrac{2×15}{9.8}= 3.06s$