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Grade 11AIIMS MBBS

Question is given in the image below...please explain how to solve...

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Profile image of Abhishek Dogra
7 Years agoGrade 11
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1 Answer

Profile image of Mahima Kanawat
7 Years ago
Dear student
The sum of times when a projectile is at same height is equal to its time of flight i.e.,
T = t1+t2
T= 2usin(theta)/g = 2*60*sin60°/g 
On solving T=10.2 seconds 
Option (1) is correct because here 3.1+7.1=10.2
 
WITH REGARDS 
MAHIMA 
ASKIITIANS FORUM EXPERT