<P> In physics , escape velocity is the minimum speed needed for an object to escape from the gravitational influence of a massive body . </P>
<P> In physics , escape velocity is the minimum speed needed for an object to escape from the gravitational influence of a massive body . </P>
to escape from a planets gravity an object must reach a speed called the
to escape from a planets gravity an object must reach a speed called the
escape velocity
escape velocity