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प्रश्न
Write scientific reason.
The velocity of spacecraft at the earth's surface must be greater than the escape velocity of the earth.
कारण सांगा
उत्तर
- The spacecraft must escape the earth’s gravitational force to travel into outer space.
- To achieve this, the initial velocity of the moving object must be greater than the escape velocity of the earth.
- To overcome Earth's gravity-induced slowdown, the spaceship must maintain a velocity greater than escape velocity. This lets the spaceship keep moving away from Earth without being dragged back.
- If the initial velocity is insufficient, the spacecraft will fall to Earth or stay in low orbit. The spacecraft can reach orbit or deep space by surpassing the escape velocity.
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