Question

Question 39:
A stone falls from a building and reaches the ground 2.5 seconds later. How high is the building ? (g =8 m/s2)

Lakhmir Singh Physics Class 9

Answer 1

Answer:

Here's your answer

Explanation:

u=0 m/s

g=9.8m/s

t=2.5 sec

h=?

S =ut+1/2 g2

S =0 ×2.5×1/2×9.8×2.5×2.5

S =0×4.9×2.5×2.5

S = 30.625

Hope it helps.

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