The escape velocity of projectile on the surface of earth is 11.2 `Kms^(-1)`. If a body is projected out with thrice of this speed, find the speed of the body far away from the earth. Ignore the presence of other planets and sun.

Explanation

`v=sqrt(v_p^2-v_e^2)=sqrt((3V_e)^2-v_e^2)=sqrt8xx11.2=31.68kms^(-1)`