A vertically oriented rocket that is able to sustain a continuous upward velocity of 8 km/s will
A)eventually escape from Earth.
B)be unable to escape Earth.
C)maintain a fixed orbit around Earth.

Question

Quizplus · Accepted Answer

An object that is able to sustain a continuous upward velocity of 8 km/s will eventually escape from Earth because it will reach the escape velocity required to overcome the gravitational pull of Earth. The escape velocity of Earth is approximately 11.2 km/s, which means that once the rocket reaches and sustains a velocity of 8 km/s, it will continue to accelerate until it is no longer held within Earth's gravitational field. Therefore, the correct choice is A) eventually escape from Earth.

A Vertically Oriented Rocket That Is Able to Sustain a Continuous