You must determine the acceleration of a rocket so that its equipment can be des

Question

You must determine the acceleration of a rocket so that its equipment can be designated to survive. The rocket will have a burn time of t = 30 seconds, during which time it flies straight up with constant acceleration a; call this "Phase 1" of the experiment. After the fuel is exhausted, the rocket will enter free - fall; call this "Phase II". The total time of flight of the rocket must be T = 300 seconds. What should you make the acceleration of the rocket, a, when the engine is on? What is the maximum altitude of the rocket?

Explanation / Answer

a)Time for the rocket to go up=300/2=150s

Time accelerating=30s

Velocity after accelerating period=30a

Time take for thetocket to come to rest=120s

30a-120g=0

a=4g=39.2m/s2

b) Maximum height=v2/2g+0.5at12=70560+529200=600000m=600km

Related Questions

Navigate

• Browse (All)
• Browse Y
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.