Rocket Experiment (Equations) Help?

Question

We did an experiment at our school and I need some help figuring out the answers to the equations:

USE SIGNIFICANT DIGITS FOR ANSWERS

ROCKET:

Total Impulse = 2.50 Thrust Duration = 0.32 Mass = 0.031

t = thrust duration

Equation 1: Thrust Force:

TF = total impulse / thrust duration

Equation 2: acceleration:

a= Thrust force - mass of rocket in Kg (multiplyed by) 9.8 divided by mass of rocket in Kg

Equation 3: Displacement when engine is on:

d= V1 t + 1/2 a (t)^2 (a comes from equation 2 answer)

Equation 4: Max Velocity of Rocket:

V2 = V1 + a x t (a is from equation 2 answer)

Equation 5: Displacement when engine off:

d = V2 - V1 / 2a (a= -9.8) (V1 is V2 from equation 4)

Equation 6: Resultant Displacement:

dr = d (engine on) + d (engine off)

Answer 1

You have the inputs, you have the equations.  

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