4. Spacex wants to utilize its Starship launch vehicle, which is currently being constructed, to send people to Mars. It will stand at a staggering height of 122m. If an aerodynamic ball is released from this height (assuming no air resistance), it will take 4.99s for the ball to reach the ground; right before the ball reaches the ground, its velocity is -48. 92 ", What was the acceleration of the ball as it fell? Ardent Physicists: 5. The Satum V rocket, which took us to the Moon, has three stages. A Its first stage, S-IC, burned for 2.5 minutes and accelerated the rocket to a velocity of 276 "",. What was the average acceleration of Satum V during this time? B After the first stage has finished buming, it separates from the rocket and the second stage, S-II, begins to burn. It burns for 6 minutes and propels the rocket to a velocity of 6.995 m. What was the average acceleration of Satum V during this time? C The last stage, S-IVB, bums for 2.5 minutes and is then cut off once its velocity reaches 7. 791 kim, What was the average acceleration of Saturn V during this time? D The maximum amount of g's a human can safely handle is between 3 and 4. Are any of the stages unsafe for the astronauts onboard