- #1

victoriafello

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## Homework Statement

an asteriod with mass 6.6x10^17kg & radius 46km has escape velocity 44ms, but if the projectile is launched horizontally then the escape velocity is only 31ms, show that this is correct

## Homework Equations

Vesc = SQRT (2GM/R)

G = 6.67x10^-11

## The Attempt at a Solution

the only thing i can think of is that the rotational speed of the asteriod is helping to reduce the escape velocity, but I am not sure how to work it out ?