Plz solve the following ques....urgent...kinematics!!

Dear Student ,
Here is a link for the question number 5 which will help you to get the answer .
https://www.meritnation.com/ask-answer/question/two-identical-balls-are-shot-upward-one-after-another-at-an/motion-in-a-straight-line/10759355

Kindly ask different question in different threads so that our experts can help you properly .
Regards