14 pts D Question 6 A model rocket is launched at 20 m/s at an angle of 20 with respect to the ground. Which of the following statements describes the acceleration vector for this object as it travels to a maximum height and then returns to the ground? The magnitude of the acceleration is the same throughout the trajectory, but the sign of the acceleration changes. The acceleration is +9.8 m/s2 before the rocket reaches maximum height and then -9.8 m/s2 after it reaches maximum height. The acceleration is the same, -9.8 m/s2, at all points in the trajectory except at maximum height. At maximum height the acceleration is 0 m/52. The magnitude of the acceleration is the same throughout the trajectory, but the sign of the acceleration changes. The acceleration is -9.8 m/$2 before the rocket reaches maximum height and then +9.8 m/s2 after it reaches maximum height. The acceleration is constant throughout the trajectory. It is always -9.8 m/s2 D Question 7 14 pts You are standing on a platform that is 3 m high. You want to throw a water balloon and hit a target. The target is located on the ground 10 m away from the bottom of the platform. If you throw the balloon at an upward angle of 30 with respect to the platform, how could you best describe the time it takes for the balloon to reach the ground? The time it takes to reach maximum height will be slightly longer than the time it takes for the balloon to fall from maximum height back to the ground. The time it takes to reach maximum height will be slightly shorter than the time it takes for the balloon to fall from maximum height back to the ground. The time it takes to reach maximum height will be the same as the time it takes for the balloon to fall from maximum height back to the ground.D You are standing on a platform that is 1.2 m high. You want to throw a water balloon and hit a target. The target is located on the ground 5.2 m away from the bottom of the platform. You throw the water balloon horizontally. Use this information to answer the next 2 questions. 14 pts D Question 1 How long is the balloon in the air before it hits the ground? 0.24 5 2.3 S 3.1 s O 1.4 s 0.98 s 0.49 s D Question 2 15 pts How fast do you have to throw the balloon for it to land on the target? 13.8 m/s O 1.4 m/s 17.6 m/s O 20.4 m/s 5.3 m/s 10.5 m/s