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Introduction to Radial & Tangential Acceleration

If a body is ...

Question

If a body is projected with speed v greater than escape speed $v_{e}$ from the surface of earth, find its speed in interstellar space.

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Solution

$K . E$ at earth $-$ Binding energy $=$ final energy
$\frac{1}{2} {m v}^{2} - \frac{1}{2} m v_{e}^{2} = \frac{1}{2} m v_{f i n a l}^{2} v_{f i n a l} = \sqrt{v^{2} - v_{e}^{2}}$

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Introduction to Radial & Tangential Acceleration

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