The ceiling of a hall is 40 m high. For maximum horizontal distance, the angle at which the ball may be thrown with a speed of 56ms^(-1)without hitting the ceiling of the hall is

The ceiling of a hall is 40 m high. For maximum horizontal distance, t

1.	The ceiling of a hall is 40 m high. For maximum horizontal distance, the angle at which the ball may be thrown with a speed of 56ms^(-1)without hitting the ceiling of the hall is
Answer» `25^(@)` `30^(@)` `45^(@)` `60^(@)` ANSWER :B