The time of flight (t) of a projectile on a horizontal plane is given by

• A. <img src="/_files/images/mechanical-engineering/engineering-mechanics/42-218-1.png">
• B. <img src="/_files/images/mechanical-engineering/engineering-mechanics/42-218-2.png">
• C. <img src="/_files/images/mechanical-engineering/engineering-mechanics/42-218-3.png">
• D. <img src="/_files/images/mechanical-engineering/engineering-mechanics/42-218-4.png">