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Section B Motion under Gravity11. A body is dropped from a height h under accelerationdue to gravity g. If t, and t, are time intervals for itsfall for first half and the second half distance, therelation between them is(A) tl = t2(B) t, 2t,(D) t, 4t,(C) t, 2.414 t, |
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Answer» h=1/2g(t1+t2)^2 2h/g=(t1+t2)^2------(1) h/2=1/2gt1^2 t1^2=h/g---------(2) From 1st and 2nd t1^2=(t1+t2)^2/2 t1=(t1+t2)/1.41 1.41t1=t1+t2 t1=t2/.41 So t1=2.414t2 Hansika you look intelligent, because you solved an uneasy question. Can you answer 26 no. question and also that starts from 'A bullet. . |
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