# Answer to Question #57432 in Classical Mechanics for pawas

Question #57432

Explain what happens to a body when raised to a height from the surface of the earth and given a horizontal velocity V such that

A- 0<V<8.0km/sec

B-V=8km/sec

C-11.2>V>8.0 km/sec

D- V=11.2 km/sec

A- 0<V<8.0km/sec

B-V=8km/sec

C-11.2>V>8.0 km/sec

D- V=11.2 km/sec

Expert's answer

A. In this case body will fall down on Earth following the parabolic trajectory, depending on velocity.

B. In this case body will start orbiting the Earth at constant height on circular orbit. We would have to neglect friction due atmosphere to give such conclusion.

C. In this case body will orbit the Earth with elliptical orbit.

D. In this case body will leave the Earth forever and start orbiting the Sun.

B. In this case body will start orbiting the Earth at constant height on circular orbit. We would have to neglect friction due atmosphere to give such conclusion.

C. In this case body will orbit the Earth with elliptical orbit.

D. In this case body will leave the Earth forever and start orbiting the Sun.

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