An stone is dropped from a tower of height h meters its position from ground after t s is

C.

8h/9 metres from the ground

therefore s = h/9 mHence, the position of ball from the ground= h- h/9 = 8h/9 m

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Time =2.5 s ; Height =40 m

Time =4 s ; Height =80 m

Time =6 s ; Height =50 m

Time =7.5 s ; Height =100 m