P. Solve the following problems as requested. If the answer is numerical, round it to two decimals

1. A marathon runner during a competition runs the following route: 25 km to the north, 10 km at 180 degrees and 15 km at 120 degrees. The entire route takes 1 hour and 20 minutes. What is the magnitude of the velocity (in km/h)?

2. A field has the following dimensions 52 m x 44 m. A person jogs along the edge of the field and runs 4.5 laps every day, starting from a vertex of the rectangle. If the entire distance is made in 1.18 minutes, what is the magnitude of the velocity (m/s)?

3. A car travels in a straight line, first travelling 23.06 km in one direction and then 11.07 km on the same line, but in the opposite direction. The entire trip takes a quarter of an hour. What is the velocity (km/h) of the car?