In a detective story a body is found 5 m away from the base of a building and beneath an open window `25 m` above. Would you guess the death to be accidental or not ? Explain your answer. `(g = 10 m//s^(2))`

Answer

Accidental

Explanation

As `t = sqrt((2h//g)) = sqrt((2 xx 25)/(10)) = (sqrt5) s`, the horizontal velocity of body would have been `u = (x)/(t) = 5//sqrt5 = sqrt5 m//s ~= 223 m//s`
(about 20 % of world class sprint speed of 10 m//s). As this horizontal launch speed cannot be achieved by a standing person himself without a push from behind or by throwing him, so the case is not accidental