Arocket accelerates by burning its onboard fuel, so its mass decreases with time. suppose the initial mass of the rocket at liftoff (including its fuel) is m, the fuel is consumed at rate r, and the exhaust gases are ejected with constant velocity ve (relative to the rocket). a model for the velocity of the rocket at time t is given by the equation v(t) = −gt − ve ln m − rt m where g is the acceleration due to gravity and t is not too large. if g = 9.8 m/s2, m = 30,000 kg, r = 130 kg/s, and ve = 2,700 m/s, find the height of the rocket one minute after liftoff. (round your answer to the nearest whole meter.)

the position is  7 10⁹ m

Explanation:

Since the position is the integral of the velocity with respect to time and the equation of velocity is given in the problem

     v (t) = -gt - ve ln m - rt m

     v = dx / dt

     dx = v dt

     x = ∫ v dt

     x = ∫ [-gt -ve ln m -rtm] dt

     x = -g t² / 2 - veln m t - rm t² / 2

Evaluated between t = 0 and t = 60 s

    x = -g ½ (60² -0) - veln m (60-0) - rm ½ (60²-0)

    x = - 9.8 1800 - 2700 ln 30000 60 - 130 30000 1800

    x = -17640 - 1670050 -7020000

    x = 7.02 10⁹ m

    x = 7 10⁹ m

This is the position of the rocket 1 minute after clearance

gravititional force is a force that is acting around you, it is non-contactable and it is a force that pulls you to the core of the earth.

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i just did this and got a 100.