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Grade 11Mechanics

Please Ans that fast and with the proper steps plz . And I'm also interested in your course's

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Profile image of Hari
7 Years agoGrade 11
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1 Answer

Profile image of Rishwanth
7 Years ago
this is a simple question 
the equations are 
-h=ut1-1/2gt1^2
-h=-ut-1/2gt2^2
-h=0t-1/2gt^2
on solving these three equations we get a quadratic equation so on we get answer as t1t1^1/2