The first question answer is d the next one is b can you explain why they are the correct answers

about To mis. Suppose a volleyball player claims a hang time of 1.25 seconds. Then that player must be able to jump a vertical distance of y = Vjob - gt 2 a 7.7 m. b) 11.25 m. C) 1.25 m. 1.91 m. A student while on the Earth's surface tosses a rock straight up. While the rock is still rising, its a) velocity and acceleration are both downward. b) velocity is upward but its acceleration is downward. C) velocity is downward but its acceleration is upward. O + d) velocity and acceleration are both upward. e) velocity and acceleration are both constant