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A particle falling under gravity describes soft in a certain sec. How long does it take to describe next 112ft?[g=32fts*2} |
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Answer» 1sExplanation:Let us consider the velocity of particle when it completes 80 ft is V and this velocity will be INITIAL velocity for 112 ft height. Let us consider it takes t time.g=32ft/s 2 V 2 =U 2 +2ghV 2 =O 2 +2×32×80V= 64×80 V=8×4 5 V=71.55 ft/snow, H=vt+0.5×g×t 2 112=71.55t+0.5×32×t 2 On solving,t=−h± h 2 −4ac /2αt=1 secondsPls mark as BRAINLIEST if you are satisfied ☺️Pls mark as BRAINLIEST if you are satisfied ☺️Follow |
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