Consider the following record of travel along a straight path: Leg 1 Start from rest with a constant acceleration of 1.5 m/s for 10 s. Leg 2- Maintain a constant velocity for the next 75 s. Leg 3 Apply a constant negative acceleration of -0.25 m/s for the next 60 s. a. What is the total displacement for the trip? b. What is the average speed for Leg 1? c. What is the average speed for Leg 2? d. What is the average speed for Leg 3? e. What is the average speed for the complete trip?