A dog and her handler are at rest, and are facing each other at a distance of 40.0 m. On command, they run towards each other: the handler runs at a constant speed vp = 2.5 m/s, while the dog first runs with constant acceleration ad = 2.0 m/s 2 until she reaches her maximum speed of vd = 4.5 m/s. a) Calculate the time it takes the dog to reach her maximum speed. Choose t = 0 when the handler and dog start to run. b) Find the positions of the handler and dog at the instant the dog reaches her maximum speed. Choose the coordinate, such as that the handler is at the origin x = 0 at time t = 0. %3D %3D %3D %3D %D

A dog and her handler are at rest, and are facing each other at a distance of 40.0 m. On command, they run towards each other: the handler runs at a constant speed vp = 2.5 m/s, while the dog first runs with constant acceleration ad = 2.0 m/s 2 until she reaches her maximum speed of vd = 4.5 m/s. a) Calculate the time it takes the dog to reach her maximum speed. Choose t = 0 when the handler and dog start to run. b) Find the positions of the handler and dog at the instant the dog reaches her maximum speed. Choose the coordinate, such as that the handler is at the origin x = 0 at time t = 0. %3D %3D %3D %3D %D