Question

A stone falls from a building and reaches the ground 2.5second later. How high is the building? (gravity=9.8m/s)

Answer 1

Hey dear here is your answer!!!!!

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⭕ According to question;

⭐u = 0 (initial velocity )
⭐t= 2.5
⭐a= 9.8m/s^2
⭐H = ?

⭕On applying second eq. of motion ;

H = ut +1/2at^2
H = 0+1/2×9.8×6.25
H = 31m (approx)
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Hope it helps u dear....⭐⭐⭐