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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 |
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Answer» Here's your ANSWEREXPLANATION:u=0 m/sg=9.8m/st=2.5 SECH=?S =ut+1/2 g2S =0 ×2.5×1/2×9.8×2.5×2.5S =0×4.9×2.5×2.5S = 30.625Hope it helps.Have a NICE DAY... |
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