question_answer

A body is projected vertically upwards from the surface of a planet of radius R with a velocity equal to half the escape velocity for that planet. The maximum height attained by the body is:

A) \[\frac{R}{2}\]                          

B) \[\frac{R}{3}\]

C) \[\frac{R}{4}\]                          

D) \[\frac{R}{5}\]