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A roket starts from rest and accelerates with 2g.after height h engine is stopped.what is total height reached [ ans:3h]

A roket starts from rest and accelerates with 2g.after height h engine is stopped.what is total height reached [ ans:3h]

Grade:11

2 Answers

Arun
25763 Points
one year ago
Dear student
 
Please attach the image. As the language of question is ambiguous.
 
Hope you understand
 
Thanks and regards
Vikas TU
14149 Points
one year ago
Dear student 
Accln= 19.6 m/s time t =5sec
Hmax = u square /2g
for initial velocity.
a=u/t i.e. 19.6=u/5
:. u=19.6×5=98m/s
:. Hmax=98 square/2(10)
9604/20=480.2m

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