JEE Main Physics question

A body dropped from a height with an initial speed zero, strikes the ground with a velocity 3 km/h. Another body of same mass is dropped from the same height with an initial speed km/h (downward). Find the final velocity of the second body with which it strikes the ground [CBSE PMT 1996]

• (A)3 km/h
• (B)3.5 km/h
• (C)4 km/h
• (D)5 km/hCorrect