1. A truck with an initial speed of 12 meters per second accelerates uniformly at 2.0 meters per second for 3.0 seconds. What is the total distance traveled by the truck during this 3.0-second interval? 2. An object is allowed to fall freely near the surface of a planet. The object falls 54 meters in the first 3.0 seconds after it is released. What is the acceleration due to gravity on that planet? 3. A 10. kilogram object, starting from rest, slides down a frictionless incline with a constant acceleration of 2.0 m/s2 for 4.0 seconds. What is the velocity of the object at the end of the 4.0 seconds? 4. During the 4.0 seconds, what is the total distance traveled by the object of question 3? 5. A toy projectile is fired from the ground vertically upward with an initial velocity of + 29 meters per second. How high will the projectile go? [Neglect air resistance. ] 6. What is the displacement of the projectile of the previous problem from the time it left the ground until it returned to the ground