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)`.