1. A car travels at 55 m/s to the right for 2000 s, then the car turns around and travels towards the left at 33 m/s for 3000 s.

a. Determine the average speed of the car for the entire trip.

b. Determine the average velocity of the car for the entire trip.

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?