Question : A body dropped from a height h 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 4km/h . Find the final velocity of second body with which it strikes the ground
(a) 3 km/h
(b) 4 km/h
(c) 5 km/h
(d) 12 km/h
Answer : The right option is (c)
Solution :
