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Math Help - Finding the intial velocity of a spacecraft

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    Finding the intial velocity of a spacecraft

    Estimate the initial velocity in meters/s that needs to be given to a spacecraft moving straight away from earth to make it reach the lunar orbit at 383000 km away from the centre of the earth.

    The initial height of the spacecraft is H km above the surface of the earth. The radius of the earth is 6370 km.

    H[km] = 4420;
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  2. #2
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    Quote Originally Posted by m_i_k_o View Post
    Estimate the initial velocity in meters/s that needs to be given to a spacecraft moving straight away from earth to make it reach the lunar orbit at 383000 km away from the centre of the earth.

    The initial height of the spacecraft is H km above the surface of the earth. The radius of the earth is 6370 km.

    H[km] = 4420;
    use energy principles.
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