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Grade: 11

                        

A ro rocket is fired vertically and since with a constant acceleration of 20 metre per second square for 1 minute its fuel is then all use and it continued as a free fall vary what is the maximum altitude reached what is the total time lapse from the take off until rocket strikes Earth

A ro rocket is fired vertically and since with a constant acceleration of 20 metre per second square for 1 minute its fuel is then all use and it continued as a free fall vary what is the maximum altitude reached what is the total time lapse from the take off until rocket strikes Earth

one month ago

Answers : (1)

Anand Kumar Pandey
askIITians Faculty
4182 Points
							Dear Student

S=ut-1​/2 at2
S=1​/2(10)(30)2
=4500m
now
v2−u2=2as
v=300m/s​
now after fuel is consumed
a=−10
v=0
v=u−gt
t=30s
total time=30+30=60s​



Thanks
one month ago
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