There’s a massive asteroid heading for Earth at 26,000 miles per hour

(A) What is the escape speed on a spherical asteroid whose radius is 500  km and whose gravitational acceleration at the surface is 3.0  m / s^2 ? (b) How far from the surface will a particle go if it leaves the asteroid's surface with a radial speed of 1000  m / s ?(c) With what speed will an object hit the asteroid if it is dropped from 1000  km above the surface? | Numerade