Item 3 Submit My Answers Give Up Correct A 2910-kg test rocket is launched verti

Question

Item 3 Submit My Answers Give Up Correct A 2910-kg test rocket is launched vertically from the aunch pad. ts fuel (of negligible mass) provides a thrust force so that its vertical velocity as a function of time is given by e(t) = At + Bt-here A and Bare constants and time is measured from the instant the fuel is ignited. At the instant of ignition, the rocket has an upward acceleration of 1.60 m/s and 2.00 s later an upward velocity of 1.90 m/s Part D At 4.00 s after fuel ignition,what thrust force does the burning fuel exert on it, assume no air resistance? Express the thrust in newtons T 256 104 N My Answers Give Up Correct Part E What thrust force does the buming fuel exert on it, assume no air resistance? Express the thrust as a mulbiple of the rocket's weight T- Submit My Answers Give Up Part F What was the initial thrust due to the fuel? T- 3.32x10 N My Answers dive Up Correct

Explanation / Answer

"Express the thrust as a multiple of the rocket's weight."
T/(mg) = 2.56*10^4 N / [(2910 kg)(9.81 m/s²)] =
0.897 (factor of the rocket's weight)

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