A ball when thrown up from a tower of height h takes 6 seconds to reach ground and when thrown downward with same velocity, it took 1.5 seconds. How much time it will take if ball is dropped from the tower?
Options: (a) 3 sec (b) 5 sec (c) 2 sec (d) 4 sec
Options: (a) 3 sec (b) 5 sec (c) 2 sec (d) 4 sec