Answer the Chief’s questions
1) For how many seconds did the
fuel last for?
17 seconds .
The rocket starts to slow down under the influence of gravity as soon as
the fuel has been used up.
2) How many seconds after launch
did the rocket reach peak altitude?
Peak altitude is reached at 25 seconds after launch.
The rocket momentarily comes to a stop
as it changes direction and starts its descent.
3) How long did the rocket take
to return back to earth?
The rocket returns back to Earth when the speed reaches
0 for the second time. This occurs at 45 seconds.
4) Did the parachutes open or
did the rocket crash?
The parachutes opened at 34 seconds at
which point the speed of descent was abruptly decreased to 10m/s.
5) At what speed did the rocket
return back to earth?
10m/s
6) Between 15 and 25 seconds
the rocket is decelerating. What force/s cause the deceleration?
Gravity is acting on the rocket to slow it down.
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