A probe to sun - 3

Classical Mechanics Level 3

A payload is fired from Earth's surface with initial speed \(v_0 = 2\times 10^4\) m/s. If the mass and radius of earth are \(M = 6\times 10^{24}\) Kg and \(R = 6.4\times 10^6\) m, find the payload's speed when it is very far from the Earth (in m/s).