Tuesday, November 17, 2009

Rocket lab due date

Rocket labs will be due Friday. Make preliminary calculations by Thursday so we can see which of the data is any good.They are informal. However you must show how you calculate the J of the rocket motor and see is the difference between h burnout and h top is consistent with the vburn out and free flight after burn out.

remember that gravity is supplying a negative impulse during the burn phase

you can use the vburn out to find the time from burnout to top of flight. see if this consistent with your measurements. You can use v burn out and vtop = 0 to find the average velocity during free flight and use this and time of free flight [ t top - tburn out] to see if htop- hburnout = expected delta h for free flight.

Make it interesting and informative, and make it right.

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