Problem 11.11 Far in space, where gravity is traveling at 95.0 m/s fires its eng

Question

Problem 11.11 Far in space, where gravity is traveling at 95.0 m/s fires its engines. The figure (Figure 1) shows the thrust force as a function of time. The mass lost by the rocket during these 30 s is negligible. a 435 kg rocket Incorrect; Try Again; 4 attempts remaining Enter Figure 1 |of! Part C What is the maximum speed of the rocket? Express your answer to three significant figures and include the appropriate units. F, (N) 1000 30 0 t (s) 0 10 20 30 Incorrect; Try Again; 5 attempts remaining

Explanation / Answer

Impulse = area under the F vs t curve

I = (1000 x 30 / 2) = 15000 kg m/s

Impulse = change in momentum

15000 = 435(v - 95)

v= 129.5 m/s

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