A projectile is launched horizontally at a speed of 30 m/s from a platform located a vertical distance h above the ground. The projectile strikes the ground after time t at horizontal distance d from the base of the platform. [Neglect friction.] Calculate the horizontal distance, d, if the projectile’s time of flight is 2.5 seconds

12.25 m

30.65 m

75 m

61.25 m