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Relative Velocity

a projectile ...

Question

a projectile is fired vertically upward with escape velocity from earth .if it is fired at 45 to the horizontal what should be the sped so that it escape from te earth

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For a body to escape from the earth, angle from horizontal at which it should be fired with the escape velocity is

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For a body to escape from earth, angle from horizontal at which it should be fired is

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