Question

A body is projected with velocity 'v' from a planet with escape velocity 'v_e'. What will happen if v < v_e?

• A. Body will leave the planets atmosphere and never come back
• B. Will reach certain height and orbit around planet necessarily
• C. Fall back on the planet necessarily
• D. Will either reach certain height and orbit around planet or fall back on the planet

Answer 1

The correct option is D

Will either reach certain height and orbit around planet or fall back on the planet

A body is projected with velocity 'v' from a planet with escape velocity 'v_e'. If v < v_e then either it will reach a certain height and orbit around planet or fall back on the planet depending on the value of v.