A gun fires a bullet at a speed of 140 ms^(-1). If the bullet is to hit a target at the same time level as the gun and at 1 km distance, the angle of projection may be

A gun fires a bullet at a speed of 140 ms^(-1). If the bullet is to hi

1.	A gun fires a bullet at a speed of 140 ms^(-1). If the bullet is to hit a target at the same time level as the gun and at 1 km distance, the angle of projection may be
Answer» `60^(0) or 30^(0)` `40^(0) or 50^(0)` `15^(0) or 75^(0)` `20^(0) or 70^(0)` ANSWER :C