1. Show that the equation v=v+2ax is dimensionally correct, where v and vo represent velocities, a is acceleration, and x is a distance. 2. A person makes a trip by a car between two cities. A record of the trip follows: 30.0 min at 80.0 km/h, 12.0 min at 1.00 x 10 km/h, 45.0 min at 40.0 km/h, and 15.0 min for lunch break and gas-up. (3 marks) a. Determine the average speed for the trip. b. Determine the distance between the cities.