A projectile that is fired vertically at 8 km/s from Earth's surface will
A)go into circular orbit about Earth.
B)rise and fall back to Earth's surface.
C)follow an uncertain path.
D)escape from Earth.

Question

Quizplus · Accepted Answer

A projectile fired vertically at 8 km/s from Earth's surface will not reach escape velocity, which is approximately 11.2 km/s. Therefore, it will rise and then fall back to Earth's surface due to gravity.

A Projectile That Is Fired Vertically at 8 Km/s from Earth's