Question

a astroied at a distance of r = 1.5 x10^11m from the sun heads directly away from the sun with a linear velocity of thirty km sec how far would the astroied travel before stopping

Sun = 1.99 x 10^30 kg

Answer 1

Use energy conservation principle where initial sum of potential and kinetic energy will be equal to find a potential energy at maximum distance where it stops and has zero kinetic energy.