The time of flight of a vertically projected stone is 8 ~s . The position of the stone after 6 ~s from the ground is (Acceleration due to gravity =10 ~ms ⁻² )

Step-by-step solution

Time of flight t = 2 u g or, 8= 2 u 1 10 u =40 ~m / s The position of the stone after 6 ~s from the ground. aligned & h = ut + 1 2 gt ^2=40 6+ 1 2 (-10) 6^2 & =240-180=60 ~m aligned