Need help with part b? Curving motion I have already tried - 2,4,5,6,7 - 1,2,3,6
ID: 1333010 • Letter: N
Question
Need help with part b? Curving motion
I have already tried - 2,4,5,6,7 - 1,2,3,6 and 1,3,6,7
The following questions concern the spacecraft interacting with the Earth and the Moon: What was the initial speed required to get the spacecraft to crash into the Moon? v_i= m/s When the initial speed of the spacecraft is v_i = 3.27e3 m/s, which of the following statements are true? (Select all that apply.) At the instant when the spacecraft begins to retrace its path, the magnitude of the net force acting on the spacecraft is zero. At every instant, the net gravitational force on the spacecraft is the superposition of the gravitational force due to the Moon and the gravitational force due to the Earth. At the instant when the spacecraft begins to retrace its path, its speed is zero. The direction of the spacecraft's momentum is changing at every instant. At every instant the momentum of the spacecraft is tangent to the spacecraft's trajectory. The magnitude of the spacecraft's momentum is constant. The gravitational force on the spacecraft due to the Moon is always perpendicular to the spacecraft's momentum.Explanation / Answer
b)
The following statements 2 , 4 , 5 , 6 , 7 are true because
Spacecraft is moving around moon in stable orbit
2) At every instant, the net gravitational force on the spacecraft is the superposition of the gravitational force due to the Moon and the gravitational force due to the Earth.
4) The direction of the spacecraft's momentum is changing at every instant.
5) At every instant the momentum of the spacecraft is tangent to the spacecraft's trajectory.
6) The magnitude of the spacecraft's momentum is constant.
7) The gravitational force on the spacecraft due to the Moon is always perpendicular to the spacecraft's momentum.
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