A particle is projected vertically upwards from point A on the ground. It takes t1 time to reach a point B but it still continues to move up. If it takes further t2 time to reach the ground from point B then height of point B from the ground is :

A) 1/2*g*(t1 +t2)2

B) gt1t2

C) 1/2*g*(t1 + t2)2

D) 1/2*g*t1 t2

Xplain the solution.........

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