We use the equation escape velocity equation that
vescape=11 km/s? (mmearth)(rrearth)? 1vescape=11 km/s(mmearth)(rrearth)-1 .
on this basis, calculate the escape velocity from our solar system in kilometers per second starting here at earth. hint: it to express the mass of the sun as m=3.33×105mearthm=3.33×105mearth and the distance between the sun and the earth as r=1 au=2.35×105rearthr=1 au=2.35×105rearth .
calculate the escape velocity from our milky way galaxy from our solar system in kilometers per second. hint: the galaxy has a mass of m=2×1017mearthm=2×1017mearth and our solar system sits at a distance of r=4×1013rearthr=4×1013rearth from the center of the milky way.