# Project #64260 - Physics Law of Newtons

Now we will launch a little rocket. I say little because it will have constant gravity (unlike real rockets due to significant altitude), but rocket in that it will have time-dependent thrust and drag. (Later in the course we will deal with gravity in the real case as well as the atmospheric density changing, etc. Use Ft to denote the force (assumed upward) from the thrust. We will assume that it is an exponentially decaying thrust as one might get from a CO2 cartridge.

a. What max thrust will the rocket experience?

b. After how long will thrust be equal to the force of gravity on our 1 kg model rocket?

c. If the rocket experiences drag, will acceleration be zero, positive or negative (up is assumed positive) at this time?

d. Play around with the value of b so that your rocket reaches between 200 and 300 meters maximum altitude.

e. Integrate v vs t from launch to max height, and show that it gives an almost identical answer to just looking for the max value of y.

f. What maximum speed did the rocket reach on the way up, t what time?

Please write the fomular before you calculate so I can understand.

 Subject General Due By (Pacific Time) 03/29/2015 05:00 pm
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