Question

With what minimum velocity a body must be projected from the
surface of the earth making an angle 45º with the surface so that it
escapes along from the gravitational field of the earth?
(a) 11.2 kms⁻¹ (b) 11.2 √2 kms⁻¹
(c) 5.6 √2 kms⁻¹ (d) 22.4 kms⁻¹

Answer 1

Answer:

a. 11.2 km/s is the velocity