In the Absence of Air Resistance,a Ball Is Thrown Vertically

Multiple Choice

In the absence of air resistance,a ball is thrown vertically upward with initial speed v.An identical ball is thrown upward with initial speed 2v.If the first ball reaches a maximum height h,what maximum height will the second ball reach?

A) 8h
B) 4h
C) 2h
D) h
E) h