You decide to play fetch with your dog, who is sitting next to you, so you throw a ball down a narrow hallway. The ball comes to a stop 3.9 m down the hallway. The dog, starting from rest, runs after the ball with a constant acceleration of 0.70 m/s2 until she reaches the ball. She grabs the ball while still running down the hallway uniformly accelerating(slowing down) for 4.7 more seconds until she comes to a stop. What is the total distance the dog travels to grab the ball and come to a final stop, starting from rest

Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to.in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?

Ineed the answer to question 1 , i’m desperate

If y gets smaller as x gets bigger and y have an relationship?