Author Question: A projectile that is fired vertically at 5 km/s from the Earth's surface will A) go into a ... (Read 53 times)

nevelica · **on:** Jul 29, 2018

A projectile that is fired vertically at 5 km/s from the Earth's surface will

A) go into a circular orbit about Earth.
B) go into an elliptical orbit about Earth.
C) rise and fall back to Earth's surface.
D) none of the above

Question 2

Consider a monkey wrench released at rest at the far edge of the solar system that drops to Earth by virtue of only Earth's gravity. The wrench will strike Earth's surface with a speed of about

A) 10 m/s.
B) 8 km/s.
C) 11 km/s.
D) the speed of light.